4
A Story of Units®
Fractional Units LEARN ▸ Module 6 ▸ Angle Measurements and Plane Figures
Student
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because . . . .
My drawing shows . . . . Agree or Disagree
I agree because . . . . That is true because . . . . I disagree because . . . . That is not true because . . . . Do you agree or disagree with
Ask for Reasoning
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?
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Content Terms
Place a sticky note here and add content terms.
? Why?
What does this painting have to do with math? American abstract painter Frank Stella used a compass to make brightly colored curved shapes in this painting. Each square in this grid includes an arc that is part of a design of semicircles that look like rainbows. When Stella placed these rainbow patterns together, they formed circles. What fraction of a circle is shown in each square? On the cover Tahkt-I-Sulayman Variation II, 1969 Frank Stella, American, born 1936 Acrylic on canvas Minneapolis Institute of Art, Minneapolis, MN, USA Frank Stella (b. 1936), Tahkt-I-Sulayman Variation II, 1969, acrylic on canvas. Minneapolis Institute of Art, MN. Gift of Bruce B. Dayton/Bridgeman Images. © 2020 Frank Stella/Artists Rights Society (ARS), New York
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Great Minds® is the creator of Eureka Math®, Wit & Wisdom®, Alexandria Plan™, and PhD Science®. Published by Great Minds PBC. greatminds.org Copyright © 2022 Great Minds PBC. All rights reserved. No part of this work may be reproduced or used in any form or by any means—graphic, electronic, or mechanical, including photocopying or information storage and retrieval systems—without written permission from the copyright holder. Printed in the USA 1 2 3 4 5 6 7 8 9 10 XXX 25 24 23 22 21 ISBN 978-1-63898-513-6
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A Story of Units®
Fractional Units ▸ 4 LEARN
Module
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1 2 3 4 5 6
Place Value Concepts for Addition and Subtraction
Place Value Concepts for Multiplication and Division
Multiplication and Division of Multi-Digit Numbers
Foundations for Fraction Operations
Place Value Concepts for Decimal Fractions
Angle Measurements and Plane Figures
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EUREKA MATH2 Tennessee Edition
4 ▸ M6
Contents Angle Measurements and Plane Figures Topic A
Lesson 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Use a protractor to draw angles up to 180°.
Lines and Angles Lesson 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Identify and draw points, lines, line segments, rays, and angles.
Topic C Determine Unknown Angle Measures
Lesson 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Lesson 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Identify right, acute, obtuse, and straight angles.
Decompose angles by using pattern blocks.
Draw right, acute, obtuse, and straight angles.
Lesson 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Find unknown angle measures within right and straight angles.
Lesson 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Lesson 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Identify, define, and draw perpendicular lines.
Find unknown angle measures within a decomposed angle of up to 180°.
Lesson 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Lesson 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Identify, define, and draw parallel lines. Lesson 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Relate geometric figures to a real-world context.
Lesson 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 Find unknown angle measures around a point.
Topic D Two-Dimensional Figures and Symmetry
Topic B
Lesson 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Angle Measurement Lesson 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Explore angles as fractional turns through a circle. Lesson 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Use a circular protractor to recognize
1 a 1° angle as a turn through ___ of a circle. 360
Recognize, identify, and draw lines of symmetry.
Lesson 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Analyze and classify triangles based on side length, angle measures, or both.
Lesson 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 Construct and classify triangles based on given attributes.
Lesson 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Identify and measure angles as turns and recognize them in various contexts.
Lesson 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Sort polygons based on a given rule.
Lesson 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Use 180° protractors to measure angles.
Credits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Lesson 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Estimate and measure angles with a 180°
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 210
protractor. 2
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 1
Name
1
Date
Term
Example
Notation
point
line segment
line
ray
angle
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 1
Name
1
Date
Connect each figure to the words and notation that describe it. The first one has been done for you.
1.
Point M
2.
Line segment MN
3.
Ray MN
4.
Line MN
MN
M
M
N
M
M
N
MN
M
Draw and label the figure.
N
5. Point A
6. Line segment EF
7. Ray ZB
8. Line TJ
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MN
5
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 1
9. Follow the directions for parts (a)–(e). Use a straightedge. Points A and B are given. a. Draw line segment AB. b. Draw a point that is not on line segment AB. Label it C. c. Draw ray AC. d. Draw a point that is not on line segment AB or ray AC. Label it D. e. Draw line BD.
B
A
6
PROBLEM SET
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11/22/2021 1:05:57 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 1
10. Follow the directions for parts (a)–(f). Use a straightedge. a. Draw points P and Q.
⟷
b. Draw PQ .
⟷
c. Draw a point that is not on PQ. Label it R. ¯. d. Draw PR
⟷
e. Draw a point that is not on PQ or PR̄ . Label it S. f.
⟶
Draw SQ .
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PROBLEM SET
7
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 1
11. Find and label some points, rays, lines, and line segments on the picture. Then record them in the table. Point A has been done for you.
A
7629
Points
Point A
Rays Lines Line Segments
12. How are a line, a line segment, and a ray different from each other?
8
PROBLEM SET
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TA ▸ Lesson 1
1
Date
Draw and label an example of each figure. Figure
Drawing of Figure
Ray AB
Line EF
Line segment CD
Point G
Angle
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 2
Name
2
Date
Use your right-angle tool to classify the angle as a right angle, an acute angle, or an obtuse angle. 1.
P
R
S
Identify the type of angle. 2.
D
E
3.
F
X
Y
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Z
11
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 2
4.
A
B
5.
B
E
6.
K
D
L
12
C
LESSON
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M
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 2
7.
B
C
D
8.
F
T L
9.
A
E
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C
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LESSON
13
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 2
Name
2
Date
Complete the table. Use your right-angle tool. The first one has been done for you.
Figure 1.
(same size, smaller than, larger than)
Type of Angle
(right, acute, obtuse)
A
B
2.
Size Compared to a Right Angle
C
Smaller than
Acute
A
B 3.
C
A
B
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C
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 2
Size Compared to a Right Angle
Figure 4.
(same size, smaller than, larger than)
Type of Angle
(right, acute, obtuse)
A B
5.
C
C B A
6.
16
B A
PROBLEM SET
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C
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11/22/2021 1:07:10 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 2
7. Use your right-angle tool to help identify right, acute, and obtuse angles within Charles Demuth’s painting My Egypt. Trace at least two of each kind of angle. Label them with points and an arc, and then name them in the table.
Charles Demuth (1883–1935). My Egypt. 1927. Oil, fabricated chalk, and graphite pencil on composition board. Overall: 35 15/16 x 30 in. (91.3 x 76.2 cm). Purchase, with funds from Gertrude Vanderbilt Whitney. Inv. N.: 31.172 Digital image © Whitney Museum of American Art/ Licensed by Scala/Art Resource, NY
Right Angle Acute Angle Obtuse Angle
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PROBLEM SET
17
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 2
8. Amy draws two angles that are the same size. David says they can’t be the same size because the rays in ∠QRX are drawn longer than the rays in ∠PWL. Explain how the angles can be the same size.
Q P R
18
PROBLEM SET
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X
W
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L
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11/22/2021 1:07:15 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 2
Name
2
Date
Identify each angle as right, acute, or obtuse. Use your right-angle tool. Type of Angle (right, acute, obtuse)
Figure
X
Y
Z
X
Y
Z
X
Z Y
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 2
Type of Angle (right, acute, obtuse)
Figure
X
Y
Z
Y Z
X
20
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 3
Name
3
Date
Draw an angle with the given ray. Label the angle. ⟶ 1. Use LM to draw ∠KLM.
M
L
2. Draw and label an obtuse angle PRS.
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 3
Name
3
Date
Follow the directions to draw and name the angle. Then circle the type of angle. ⟶ 1. a. Draw a point not on CD . Label it X.
⟶
b. Draw CX .
c. Draw an arc to show the angle.
C
D
Acute
d. Name the angle three different ways.
∠
,∠
,∠
Obtuse Straight
⟶ ⟶ b. Draw KE .
2. a. Draw KZ .
E
Right
c. Draw a square to show the angle.
Acute
d. Name the angle three different ways.
∠
,∠
Right
,∠
Obtuse
K
Straight
Z
⟶
3. a. Draw LQ .
⟶
b. Draw LP .
Right
c. Draw an arc to show the angle. d. Name the angle three different ways. ,
Q
,
4. a. Draw ∠HBT.
b. Draw an arc to show the angle. c. Name the angle three different ways. ,
,
L
P
Acute Obtuse Straight
Right Acute Obtuse Straight
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 3
5. Complete the table. Angle Description
Drawing of Angle
Type of Angle
Right
Smaller than a right angle
Larger than a right angle
2 rays, with common endpoints, that together make a line
24
PROBLEM SET
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11/22/2021 1:08:36 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 3
6. Use the figure to complete parts (a)–(d). Use your right-angle tool to help you. a. Name an acute angle.
Q
S
b. Name an obtuse angle.
W
c. Name a right angle. d. Name a straight angle.
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E
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F
G
PROBLEM SET
25
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TA ▸ Lesson 3
Date
3
1. Draw an acute angle KLM. Explain how you know the angle is acute.
2. Draw an obtuse angle XZY. Explain how you know the angle is obtuse.
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 4 ▸ Identify Sides in Polygons
Polygon 1
A
B
D
C
Polygon 2
L
K
M Polygon 3
Q
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P
N
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EUREKA MATH2 Tennessee Edition
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4 ▸ M6 ▸ TA ▸ Lesson 4 ▸ Rectangular and Triangular Grid Paper
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 4
Name
Date
4
Trace at least one pair of line segments that appear to be perpendicular on each object. Mark their shared right angle with a small square. 1.
2.
3.
4.
5. How do you know if two lines or lines segments are perpendicular?
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 4
Draw a line segment perpendicular to each given line segment. Use a straightedge and a right-angle tool. Mark the right angle with a small square. 6.
7.
8. Use your straightedge and right-angle tool to draw a pair of perpendicular rays.
34
PROBLEM SET
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 4
Use your right-angle tool to find and name the perpendicular sides. If there are no perpendicular sides, write the word None. Mark each right angle with a small square. Problem 9 has been started for you. 9. C
D
E
H
G
12.
Q
A
B
E
T
M
C D
V S
C
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10. P
F
11. K
13.
¯ ⊥ EF ¯ CE
F
14.
V
W
L
I
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N
PROBLEM SET
35
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 4
River Way
River Way
Moun tai
Hom eS t r ee t
y Wa
Broadway Street
South Road
eet
Central Avenue River Avenue
Benchley Avenue
West Drive
Central Avenue
n Str
South Road
East Drive
Oak
North Road
East Drive
Broadway Street
North Road
River Avenue
West Drive
15. Use the map to complete parts (a)–(d).
a. Name a street perpendicular to Central Avenue.
b. Name a street perpendicular to West Drive.
c. Name two streets perpendicular to each other.
36
PROBLEM SET
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 4
d. Is Home Street perpendicular to River Avenue? Explain your thinking.
16. Mark each right angle on the figure with a small square. (Note: A right angle does not have to be inside the figure.) How many pairs of perpendicular sides does this figure have?
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PROBLEM SET
37
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 4
Name
4
Date
¯ and YZ ¯. Mark one of the right angles 1. Draw and label a pair of perpendicular line segments, WX with a small square.
2. Use a right-angle tool to find each right angle in the figure. Mark each right angle with a small square. Then name a pair of perpendicular sides.
B
C
A
E
D
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EUREKA MATH2 Tennessee Edition
© Great Minds PBC •
4 ▸ M6 ▸ TA ▸ Lesson 5 ▸ Rectangular and Triangular Grid Paper
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 5 ▸ Identify Sides in Polygons
Polygon 1
A
B
D
C
Polygon 2
L
K
M Polygon 3
Q
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 5
Name
Date
5
Trace at least one pair of line segments that appear to be parallel on each object. Mark the line segments as parallel by drawing arrow marks. 1.
2.
3.
4.
5. How do you know whether two lines or line segments are parallel?
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 5
Draw a line segment parallel to each given line segment. Use a straightedge and a right-angle tool. Mark each line segment with an arrow mark. 6.
7.
8. Use your straightedge and right-angle tool to draw a pair of parallel lines. Mark each line with an arrow mark.
46
PROBLEM SET
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11/22/2021 2:08:16 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 5
Use a straightedge and a right-angle tool to find and name the parallel sides. If there are no parallel sides, write the word None. Mark the parallel sides with arrow marks. Problem 9 has been started for you. 9. L
P
¯ ¯ ‖ OX LP
10. A
U V
O
X F
11.
12.
E
F
C
D
G
H
S
I
H
13.
Q
R
EM2_0406SE_A_L05_problem_set.indd 47
I
M X
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H
14.
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J
L
K
PROBLEM SET
47
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 5
River Way
River Way
Moun tai
Hom eS t r ee t
y Wa
Broadway Street
South Road
eet
Central Avenue River Avenue
Benchley Avenue
West Drive
Central Avenue
n Str
South Road
East Drive
Oak
North Road
East Drive
Broadway Street
North Road
River Avenue
West Drive
15. Use the map to complete parts (a)–(d).
a. Name a street parallel to North Road.
b. Name a street perpendicular to Broadway Street.
c. Name two streets parallel to each other.
48
PROBLEM SET
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 5
d. Is Mountain Street parallel to River Way? Explain your thinking.
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PROBLEM SET
49
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 5
Name
5
Date
1. Draw a pair of parallel line segments. Label their endpoints. Mark each segment with an arrow mark.
2. Mark the pair of parallel sides with arrow marks. Then name the pair of parallel sides.
A
B
E C
D
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EUREKA MATH2 Tennessee Edition
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4 ▸ M6 ▸ TA ▸ Lesson 6 ▸ Dot Paper
53
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11/22/2021 2:58:58 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 6 ▸ Geometric Figures Game
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
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55
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 6
Name
6
Date
1. Use dot paper to create a floor plan of a home. Follow these guidelines: Include only one level. Do not include stairs. Use straight line segments. Include hallways. Include at least one example of each figure listed in the table. Label each room.
2. Use your floor plan to complete the table.
✓
Figure
Example of the Figure in the Floor Plan
Line segment
Parallel line segments
Perpendicular line segments
Right angle
Acute angle
Obtuse angle
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TA ▸ Lesson 6
Name
6
Date
1. Find an example of each figure in the floor plan. Use the numbers to complete the table.
2
Figure
1 Patio Living Room
3
7
Parallel line segments
Kitchen
4
6
Perpendicular line segments Right angle
Entry Closet
Line segment
5
Bedroom
Example in Floor plan
Bathroom
Acute angle Obtuse angle
Describe the figure. Use precise language. Figure
Description
2.
3.
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TB ▸ Lesson 7
Date
7
1. The blue figure turns _1 of 1 whole turn each time. Count by fourths to label the fraction 4 of 1 whole turn.
_1 4
2. The blue figure turns _1 of 1 whole turn each time. Count by eighths to label the fraction 8 of 1 whole turn.
_1
5_ 8
8
3. What fractional turn makes a straight angle? Use problems 1 and 2 to help you. fourths:
eighths:
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 7
4. Can you make an obtuse angle when you turn by fourths? How do you know?
5. Draw and shade to show each fraction of 1 whole turn. Then write the type of angle. The first one is done for you.
_1
Fraction of 1 Whole Turn
4
_3
_1
4
8
_4 8
Figure
Right
Angle Type
6. Carla says that _3 and _6 of 1 whole turn are the same angle. Do you agree? Use the circles to help 4
explain your answer.
62
PROBLEM SET
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8
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 7
7. Are there more quarter turns or eighth turns in 1 whole turn? How do you know?
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PROBLEM SET
63
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 7
Name
7
Date
Complete the table. Figure
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Fraction of 1 Whole Turn
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Angle Type
65
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EUREKA MATH2 Tennessee Edition
1
20
110
90
10 0
80
70
60 50
10
170
20
160
30
150
40
14 0
0 13
4 ▸ M6 ▸ TB ▸ Lesson 8 ▸ Circular Protractor
0
18 0
350
190
34 0
20 0
33 0
210 0
32 0
22
23 0
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24
0
250
260
27 0
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280
29 0
30 0
0 31
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 8
Name
8
Date
1. Use your angle-maker tool and protractor to make and measure each benchmark angle. Then complete the table. Turn
1 _ 8
Sketch of Angle
Angle Measure
45°
2 _ 8
_____ 360
_____ 360
4 _ 8
EM2_0406SE_B_L08_classwork.indd 69
Angle Type
_____ 360
3 _ 8
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Fraction of
1 Whole Turn
_____ 360
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69
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 8
Turn
Sketch of Angle
Angle Measure
Fraction of
1 Whole Turn
5 _ 8
_____ 360
6 _ 8
_____ 360
7 _ 8
_____ 360
8 _ 8
70
LESSON
EM2_0406SE_B_L08_classwork.indd 70
Angle Type
_____ 360
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11/22/2021 3:45:51 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 8
Name
8
Date
Use the protractor to fill in the blanks. 1.
0
110
10 0
90
80
70
60
50
10
170
20
16 0
30
15 0
40
14 0
13
1
20
0
18 0
35 0
19 0
200
340
Fraction of 1 turn: ______ 4
°
Angle measure:
2 10
33
0
Type of angle:
0
32
0
22 23
0
24
0
25 0
260
270
280
10 0
90
80
29 0
30
0
0 31
2. 110
70
60
50
10
170
20
16 0
30
15 0
40
14 0
0 13
1
20
0
18 0 200
340
35 0
19 0
Angle measure:
°
Type of angle:
33 0
32
0
22
EM2_0406SE_B_L08_problem_set.indd 71
4
0
2 10
23
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Fraction of 1 turn: ______
0
24
0
25 0
260
270
280
29 0
30
0
0 31
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 8
3. 0
110
10 0
90
80
70
60
50
Fraction of 1 turn: ______
10
170
20
16 0
30
15 0
40
14 0
13
0 12
0
18 0
4
35 0
19 0
°
200
340
Angle measure:
33
0
2 10
Type of angle:
0
32
0
22 23
0
24
0
25 0
260
270
280
10 0
90
80
29 0
30
0
0 31
4. 110
70
60
50
15 0
8
Fraction of 1 circle: ______
10
170
20
16 0
30
360
0
18 0
35 0
19 0
Angle measure:
340
200
Type of angle:
33
0
2 10 0
32
0
22 23
72
Fraction of 1 turn: ______
40
14 0
0 13
1
20
0
24
0
25 0
PROBLEM SET
EM2_0406SE_B_L08_problem_set.indd 72
260
270
280
29 0
30
0
0 31
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 8
5. 0
0
110
10 0
90
80
70
60
50
Fraction of 1 turn: ______ 8
10
170
20
16 0
30
15 0
40
14 0
13
12
0
18 0
360
200
340
35 0
19 0
Fraction of 1 circle: ______
33
0
2 10
Angle measure: Type of angle:
0
32
0
22
23
0
24
0
25 0
260
270
280
10 0
90
80
29 0
30
0
0 31
6. 0
110
70
60
50
Fraction of 1 turn: ______ 8
170
20
16 0
30
15 0
40
14 0
13
0 12
10
18 0
0
______
200
340
35 0
19 0
Angle measure:
33
0
2 10 0
32
0
22
23
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Fraction of 1 circle:
0
24
0
25 0
260
270
280
29 0
0 30
Type of angle:
0 31
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PROBLEM SET
73
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 8
7. 1
90
80
70
60
50
170
20
16 0
30
15 0
40
14 0
0 13
10 0
110
20
10
18 0
0
Angle measure:
200
340
35 0
19 0
Type of angle:
33
0
2 10 0
32
0
22 23
0
24
0
25 0
260
270
280
29 0
30
0
0 31
8. 0
110
10 0
90
80
70
60 50
170
20
16 0
30
15 0
40
14 0
13
0 12
10
18 0
0 33
2 10
0
200
0
32
0
22 0
24
0
PROBLEM SET
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Type of angle:
340
35 0
19 0
23
74
Angle measure:
250
260
27 0
280
29 0
30
0
0 31
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11/22/2021 3:47:39 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 8
9. 0
110
10 0
90
80
70
60
50
10
170
20
16 0
30
15 0
40
14 0
13
0 12
0
18 0
35 0
19 0
200
340
Angle measure:
2 10
33
0
Type of angle:
0
32
0
22 23
0
24
0
25 0
260
270
280
29 0
0 30
0 31
10. How many 1° angles make 1 turn?
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PROBLEM SET
75
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 8
11. An angle turns through _ of a circle. What is the measure of the angle in degrees? 3 4
55 ___
12. Zara draws an angle that turns through 360 of a circle. What type of angle does Zara draw? How do you know?
13. How many 30° angles make 1 turn?
76
PROBLEM SET
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 8
Name
8
Date
1. What fraction of a turn is 1 degree?
______
2. Use the angle shown on the protractor to complete parts (a) and (b).
0
110
10 0
90
80
70
60 50
10
170
20
160
30
15 0
40
14 0
13
0 12
0
18 0
35 0
19 0
340
20 0
0
32
22
0
33 0
210
23
0
24
0
25 0
260
2 70
280
290
30
0
0 31
a. What is the measure of the angle?
b. What fraction of a whole turn is shown? Explain how you know.
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TB ▸ Lesson 9
Date
9
1. How many degrees does the minute hand turn from 2:15 to 3:00?
2. A plane takes off flying west. The plane turns and is now flying east. How many degrees does the plane turn?
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11/22/2021 3:49:29 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 9
3. Adam is in the seat at the top of the Ferris wheel. The Ferris wheel turns 270° clockwise. a. Circle where Adam’s seat is after the turn.
b. What turn brings Adam back to the top of the Ferris wheel?
4. Liz plays a game. She wants the green piece to fit into the white space. Which button should she press to make the piece fit? How do you know?
Buttons Turn 90°
80
PROBLEM SET
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Turn 180°
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 9
5. Luke, Mia, and James are at the park. They are standing on the star. They are facing the basketball court. basketball court
garden
pool
parking lot
a. Luke turns 90° counterclockwise. What part of the park is he facing?
b. Mia turns 180°. What part of the park is she facing?
c. James now faces the pool. Use degrees and the words clockwise or counterclockwise to describe how he turned.
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PROBLEM SET
81
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 9
Name
9
Date
1. David is doing a handstand. Describe how many degrees his body will turn to stand straight up again.
2. Gabe starts riding his bike at the point represented by the star. He rides north for 3 blocks, then turns 90° clockwise and rides for 2 blocks. What direction is he facing after the turn? a. Sketch Gabe’s route on the grid. Each square represents 1 block.
N W
E S
b. Gabe is facing
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after the turn.
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83
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TB ▸ Lesson 10
Date
10
Identify the type of angle. Then use a protractor to measure the angle. 1. Type of Angle:
2. Type of Angle:
Measure:
Measure:
A
C
3. Type of Angle: Measure:
D
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85
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 10
4. Type of Angle: Measure:
F
5. Type of Angle: Measure:
L
86
LESSON
EM2_0406SE_B_L10_classwork.indd 86
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 10
6. Type of Angle: Measure:
P
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LESSON
87
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 10
7. Type of Angle: Measure:
T
88
LESSON
EM2_0406SE_B_L10_classwork.indd 88
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TB ▸ Lesson 10
10
Date
Classify the angle as right, acute, obtuse, or straight. Then write the angle measure. 1. Type of Angle:
2. Type of Angle:
°
Measure:
3. Type of Angle: Measure:
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Measure:
°
4. Type of Angle:
°
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Measure:
°
89
11/22/2021 3:54:18 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 10
Use a protractor to measure the angle. Record the measurement in degrees. 5. Measure:
°
6. Measure:
°
7. Measure:
°
8. Measure:
°
90
PROBLEM SET
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11/22/2021 3:54:19 PM
EUREKA MATH2 Tennessee Edition
9. Measure:
°
11. Measure:
°
4 ▸ M6 ▸ TB ▸ Lesson 10
10. Measure:
°
Z
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PROBLEM SET
91
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 10
12. Measure:
° C
13. Gabe says the measure of the angle shown is 75°. Use a protractor to measure the angle. Then explain Gabe’s mistake.
92
PROBLEM SET
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TB ▸ Lesson 10
Date
10
Use a protractor to measure the angles. 1.
degrees
2.
degrees
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93
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 10
3.
degrees
4.
degrees
94
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11/22/2021 3:52:34 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 11 ▸ Angle Measure Sort
36°
87°
112°
172°
138°
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95
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 11
Name
11
Date
1. Find the measure of each angle.
D
C
E
B
a. Measure of ∠A:
A
b. Measure of ∠B:
c. Measure of ∠C:
d. Measure of ∠D:
e. Measure of ∠E:
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97
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 11
2. Identify the angle type and estimate the measure. Then use a protractor to find the actual angle measure. Angle Type and Angle Measure Estimate
Angle
Actual Angle Measure
a. Angle type:
Angle measure estimate:
°
b. Angle type:
Angle measure estimate:
98
LESSON
EM2_0406SE_B_L11_Classwork.indd 98
°
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 11
Angle Type and Angle Measure Estimate
Angle
Actual Angle Measure
c. Angle type:
Angle measure estimate:
°
d. Angle type:
Angle measure estimate:
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°
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LESSON
99
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 11
Name
Date
11
Complete the table. Angle Type and Angle Measure Estimate
Angle
Actual Angle Measure
1. Angle type:
Angle measure estimate:
°
2. Angle type:
Angle measure estimate:
°
3. Angle type:
Angle measure estimate:
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°
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101
11/22/2021 3:56:33 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 11
Angle Type and Angle Measure Estimate
Angle
Actual Angle Measure
4. Angle type:
Angle measure estimate:
°
5. Angle type:
Angle measure estimate:
°
6. Angle type:
Angle measure estimate:
102
PROBLEM SET
EM2_0406SE_B_L11_problem_set.indd 102
°
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11/22/2021 3:56:34 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 11
Angle Type and Angle Measure Estimate
Angle
Actual Angle Measure
7. Angle type:
Angle measure estimate:
°
8. Angle type:
Angle measure estimate:
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°
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PROBLEM SET
103
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 11
9. Deepa says the angle shown is an acute angle. Ivan says it is an obtuse angle. Use a protractor to measure the angle. Then explain who is correct.
104
PROBLEM SET
EM2_0406SE_B_L11_problem_set.indd 104
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11/22/2021 3:56:34 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 11
Name
11
Date
Complete the table. Angle
Angle Measure Estimate
Actual Angle Measure
a.
About
°
About
°
About
°
About
°
b.
c.
d.
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105
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ Sprint ▸ Compose 90
Sprint Complete the equations. 1.
60 +
= 90 + 45 = 90
2.
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107
11/25/2021 9:48:16 AM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ Sprint ▸ Compose 90
A
Number Correct:
Complete the equations. 1.
80 +
= 90
23.
86 +
= 90
2.
70 +
= 90
24.
76 +
= 90
3.
60 +
= 90
25.
+ 66 = 90
4.
50 +
= 90
26.
+ 56 = 90
5.
90 +
= 90
27.
56 +
= 90
6.
+ 20 = 90
28.
57 +
= 90
7.
+ 40 = 90
29.
+ 67 = 90
8.
+ 10 = 90
30.
+ 77 = 90
9.
+ 30 = 90
31.
87 +
= 90
10.
+ 0 = 90
32.
88 +
= 90
11.
85 +
= 90
33.
+ 70 = 90
12.
75 +
= 90
34.
+ 60 = 90
13.
65 +
= 90
35.
10 + 70 +
= 90
14.
+ 55 = 90
36.
30 + 10 +
= 90
15.
+ 45 = 90
37.
10 +
+ 50 = 90
16.
+ 15 = 90
38.
10 +
+ 55 = 90
17.
25 +
= 90
39.
+ 55 + 20 = 90
18.
45 +
= 90
40.
+ 20 + 45 = 90
19.
35 +
= 90
41.
32 + 45 +
20.
+ 5 = 90
42.
25 +
21.
+ 65 = 90
43.
22.
+ 55 = 90
44.
108
EM2_0406SE_B_L12_removable_fluency_sprint.indd 108
= 90 + 32 = 90
+ 41 + 25 = 90 33 +
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11/22/2021 4:02:11 PM
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11/22/2021 4:02:11 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ Sprint ▸ Compose 90
B
Number Correct: Improvement:
Complete the equations. 1.
80 +
= 90
23.
87 +
= 90
2.
70 +
= 90
24.
77 +
= 90
3.
60 +
= 90
25.
+ 67 = 90
4.
50 +
= 90
26.
+ 57 = 90
5.
90 +
= 90
27.
57 +
= 90
6.
+ 10 = 90
28.
58 +
= 90
7.
+ 30 = 90
29.
+ 68 = 90
8.
+ 40 = 90
30.
+ 78 = 90
9.
+ 20 = 90
31.
88 +
= 90
10.
+ 0 = 90
32.
89 +
= 90
11.
85 +
= 90
33.
+ 80 = 90
12.
75 +
= 90
34.
+ 70 = 90
13.
65 +
= 90
35.
70 + 10 +
= 90
14.
+ 55 = 90
36.
10 + 30 +
= 90
15.
+ 45 = 90
37.
50 +
+ 10 = 90
16.
+ 5 = 90
38.
55 +
+ 10 = 90
17.
15 +
= 90
39.
+ 20 + 55 = 90
18.
45 +
= 90
40.
+ 45 + 20 = 90
19.
55 +
= 90
41.
45 + 32 +
20.
+ 35 = 90
42.
32 +
21.
+ 65 = 90
43.
22.
+ 25 = 90
44.
110
EM2_0406SE_B_L12_removable_fluency_sprint.indd 110
= 90 + 25 = 90
+ 25 + 41 = 90 41 +
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11/22/2021 4:02:12 PM
EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TB ▸ Lesson 12
12
Date
1. Use a protractor and a straightedge to draw a 40° angle.
Create a sketch of each angle. Then use a protractor and a straightedge to draw the angle. Draw an arc to show the angle. Angle
Sketch
Accurate Drawing
2. 97°
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111
11/22/2021 3:59:11 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 12
Angle
Sketch
Accurate Drawing
3. 174°
4. 151°
5. 29°
112
LESSON
EM2_0406SE_B_L12_Classwork.indd 112
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EUREKA MATH2 Tennessee Edition
Angle
Sketch
4 ▸ M6 ▸ TB ▸ Lesson 12
Accurate Drawing
6. 83°
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LESSON
113
11/22/2021 3:59:12 PM
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TB ▸ Lesson 12
Date
12
Use the ray, a protractor, and a straightedge to construct the angle. Draw an arc to show the angle. 1. 40°
2. 75°
3. 125°
4. 165°
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115
11/22/2021 4:00:03 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TB ▸ Lesson 12
5. 63°
6. 148°
Construct the angle. Draw an arc to show the angle. 7. 10°
8. 115°
9. 37°
10. 128°
116
PROBLEM SET
EM2_0406SE_B_L12_problem_set.indd 116
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11/22/2021 4:00:04 PM
EUREKA MATH2 Tennessee Edition
11. 82°
4 ▸ M6 ▸ TB ▸ Lesson 12
12. 173°
13. Jayla places a protractor over a ray. Show and explain how she can make a 40° angle.
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PROBLEM SET
117
11/22/2021 4:00:04 PM
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11/22/2021 4:00:04 PM
EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TB ▸ Lesson 12
Date
12
Construct a 130° angle. Draw an arc to show the angle.
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119
11/22/2021 3:59:39 PM
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11/22/2021 3:59:39 PM
EUREKA MATH2 Tennessee Edition
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4 ▸ M6 ▸ TC ▸ Lesson 13 ▸ Pattern Block Cutouts
121
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11/22/2021 4:37:15 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 13
Name
Date
13
1. Decompose each angle to find its measure.
A
B D
E
C
G
F
H
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123
11/22/2021 4:30:58 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 13
Find the measure of the angle represented by the arc. 2.
I +
=
The measure of ∠I is
.
3.
J +
=
The measure of ∠J is
124
LESSON
EM2_0406SE_C_L13_classwork.indd 124
.
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11/22/2021 4:30:59 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 13
4.
K
+
=
The measure of ∠K is
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.
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LESSON
125
11/22/2021 4:30:59 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 13
5. Use pattern blocks to decompose ∠L.
L
a. Write an equation to find the measure of ∠L.
+
=
b. The measure of ∠L is
.
L
126
LESSON
EM2_0406SE_C_L13_classwork.indd 126
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11/22/2021 4:30:59 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 13
Name
13
Date
Use the pattern blocks to complete problems 1–4. 30°
120°
120°
150° 120°
150°
120°
60°
30° 60°
60°
120° 120°
60°
120°
120°
60°
1. Find the measures of ∠A and ∠B. Then add to find the measure of ∠C.
B
A The measure of ∠A is .
C
The measure of ∠B is .
Addition equation:
+
=
The measure of ∠C is
90 .
2. Find the measures of ∠D and ∠E. Then add to find the measure of ∠F.
F
D
E
The measure of . ∠D is =
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The measure of ∠E is .
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Addition equation:
+
=
The measure of ∠F is
. 127
11/23/2021 10:58:23 AM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 13
3. Write an equation and find the measure of the angle represented by the arc. Angle
128
PROBLEM SET
EM2_0406SE_C_L13_problem_set.indd 128
Equation
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Measure
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11/23/2021 10:58:23 AM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 13
4. The measure of ∠Z is 120°. Describe two ways you could use pattern blocks to decompose ∠Z.
Z
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PROBLEM SET
129
11/23/2021 10:58:24 AM
EM2_0406SE_C_L13_problem_set.indd 130
11/23/2021 10:58:24 AM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 13
Name
13
Date
Use the pattern blocks to answer the question.
30°
120°
120°
150° 120°
150°
120°
60°
30° 60°
60°
120° 60°
120°
120°
60°
120°
What is the measure of the angle shown by the arc?
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131
11/22/2021 4:31:19 PM
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11/22/2021 4:31:19 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 14 ▸ Geometric Figures Game
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
133
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11/23/2021 11:08:23 AM
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11/23/2021 11:08:23 AM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 14
Name
14
Date
Complete the equations and find the unknown angle measure. Check the measurement by using a protractor. 1. ∠ABC is a right angle.
2. ∠FQH is a right angle.
A
F D S 40°
B 40 +
65°
x° C
H
= 90
+
x=
The measure of ∠DBC is
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EM2_0406SE_C_L14_problem_set.indd 135
x°
Q
= x=
.
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The measure of ∠SQH is
.
135
11/22/2021 4:41:22 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 14
3. ∠OTM is a right angle.
4. ∠LGJ is a right angle.
G
Y
12°
x°
O M 46°
J
L
x°
N
T +
+
=
= x=
x=
The measure of ∠YTM is
The measure of ∠LGN is
.
5. ∠EFG is a straight angle.
.
6. ∠UCR is a straight angle.
B D x°
100° E 100 +
F
G
PROBLEM SET
EM2_0406SE_C_L14_problem_set.indd 136
C
U
= x=
x=
136
R +
= 180
The measure of ∠BFG is
135°
x°
.
The measure of ∠DCR is
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.
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11/22/2021 4:41:22 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 14
7. ∠KVR is a straight angle.
8. ∠YJH is a straight angle.
Y
K
J
H 27°
x°
P + V
x=
The measure of ∠YJP is
x°
52°
R
+
=
.
E = x=
The measure of ∠KVE is
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.
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PROBLEM SET
137
11/22/2021 4:41:23 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 14
9. Robin builds a cat by using the shape pieces. Find the value of x. Explain your thinking.
x° 45°
10. A fan is open as shown below. How many more degrees does the fan need to open to make a straight angle? Write an equation to find the unknown angle measure. Explain your thinking.
147°
138
PROBLEM SET
EM2_0406SE_C_L14_problem_set.indd 138
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11/22/2021 4:41:24 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 14
Name
14
Date
∠ABC is a straight angle. The measure of ∠DBC is 53°.
Write and solve an equation to find the measure of ∠ABD.
D
x° A
53° B
C
Equation:
Measure of ∠ABD:
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139
11/22/2021 4:38:29 PM
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11/22/2021 4:38:29 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 15
Name
15
Date
Write and solve an equation to find the unknown angle measure. 1. ∠LMN is a straight angle.
2. ∠QLP is a straight angle.
T
A J
B 70° L
M
x°
The measure of ∠BMN is
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EM2_0406SE_C_L15_problem_set.indd 141
N
.
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Q
x° 40°
80°
L
The measure of ∠JLT is
P
.
141
11/22/2021 4:42:05 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 15
3. ∠TNH is a straight angle.
4. ∠SVM is a straight angle.
M
F H
W
S
x°
E
55° x°
23°
V
Y
N
T
The measure of ∠WNT is
142
PROBLEM SET
EM2_0406SE_C_L15_problem_set.indd 142
.
The measure of ∠SVY is
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.
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11/22/2021 4:42:06 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 15
5. ∠CZD is a straight angle.
6. ∠EFG is a straight angle.
C
E
125°
Z F
37° x° U
D W
The measure of ∠UZW is
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O
x° 28°
G
.
96°
P
The measure of ∠OFP is
.
PROBLEM SET
143
11/22/2021 4:42:07 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 15
7. The measure of ∠YJH is 75°.
8. The measure of ∠ENB is 150°.
Y
J
B
T
x° 40°
V
x°
55°
H
The measure of ∠YJT is
144
PROBLEM SET
EM2_0406SE_C_L15_problem_set.indd 144
N
E
.
The measure of ∠VNB is
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.
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11/22/2021 4:42:07 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 15
9. The measure of ∠HCE is 82°.
E
10. The measure of ∠RZU is 137°.
F S
T 17°
13°
x° C
G
R
x°
U
54° Z
30°
H
The measure of ∠FCG is
The measure of ∠RZS is
.
.
11. Pablo draws a design. The bottom of his design is a straight angle. Find the measure of the unknown angle.
20° The measure of the unknown angle is
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35°
x°
35°
20°
.
PROBLEM SET
145
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 15
Name
15
Date
∠TUV is a straight angle.
Write and solve an equation to find the measure of ∠WUX.
X W
53° T
x° U
67° V
Equation:
Measure of ∠WUX:
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147
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ Sprint ▸ Compose 180
Sprint Complete the equations. 1.
140 +
+ 175 = 180
2. 3.
= 180
100 + 50 +
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= 180
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ Sprint ▸ Compose 180
A
Number Correct:
Complete the equations. 1.
80 +
= 180
23.
50 + 50 +
= 180
2.
100 +
= 180
24.
40 + 40 +
= 180
3.
110 +
= 180
25.
70 +
+ 100 = 180
4.
170 +
= 180
26.
10 +
+ 100 = 180
5.
160 +
= 180
27.
+ 60 + 100 = 180
6.
60 +
= 180
28.
+ 100 + 20 = 180
7.
+ 50 = 180
29.
50 + 100 +
= 180
8.
+ 150 = 180
30.
100 + 30 +
= 180
9.
+ 40 = 180
31.
40 +
+ 100 = 180
10.
+ 140 = 180
32.
100 +
+ 40 = 180
11.
+ 90 = 180
33.
+ 60 + 60 = 180 + 0 + 90 = 180
12.
105 +
= 180
34.
13.
175 +
= 180
35.
178 +
= 180
14.
+ 115 = 180
36.
177 +
= 180
15.
+ 165 = 180
37.
5 + 100 +
= 180 = 180
16.
125 +
= 180
38.
100 + 65 +
17.
155 +
= 180
39.
25 +
+ 100 = 180
18.
+ 135 = 180
40.
100 +
+ 45 = 180
19.
+ 145 = 180
41.
+ 25 + 90 = 180 + 75 + 80 = 180
20.
85 +
= 180
42.
21.
95 +
= 180
43.
65 +
22.
94 +
= 180
44.
60 + 85 +
150
EM2_0406SE_C_L16_removeable_fluency_sprint.indd 150
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+ 70 = 180 = 180
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11/22/2021 4:44:59 PM
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ Sprint ▸ Compose 180
B
Number Correct: Improvement:
Complete the equations. 1.
100 +
= 180
23.
50 + 50 +
= 180
2.
80 +
= 180
24.
40 + 40 +
= 180
3.
170 +
= 180
25.
100 +
+ 70 = 180
4.
110 +
= 180
26.
100 +
+ 10 = 180
5.
160 +
= 180
27.
+ 100 + 60 = 180
6.
60 +
= 180
28.
+ 20 + 100 = 180
7.
+ 150 = 180
29.
100 + 50 +
= 180
8.
+ 30 = 180
30.
30 + 100 +
= 180
9.
+ 140 = 180
31.
100 +
+ 40 = 180
10.
+ 40 = 180
32.
40 +
+ 100 = 180
11.
+ 90 = 180
33.
+ 60 + 60 = 180 + 90 + 0 = 180
12.
175 +
= 180
34.
13.
105 +
= 180
35.
179 +
= 180
14.
+ 165 = 180
36.
178 +
= 180
15.
+ 115 = 180
37.
100 + 5 +
= 180 = 180
16.
155 +
= 180
38.
65 + 100 +
17.
125 +
= 180
39.
100 +
+ 25 = 180
18.
+ 145 = 180
40.
45 +
+ 100 = 180
19.
+ 135 = 180
41.
+ 90 + 25 = 180 + 80 + 75 = 180
20.
95 +
= 180
42.
21.
85 +
= 180
43.
70 +
22.
84 +
= 180
44.
85 + 60 +
152
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+ 65 = 180 = 180
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11/22/2021 4:45:00 PM
EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TC ▸ Lesson 16
Date
16
1. Follow the directions in parts (a)–(c) to draw the figure and find the measure of the angles. a. Draw 2 intersecting lines by using your straightedge.
b. Put a point where your lines intersect. c. Use your protractor to measure all 4 angles. Label the measures on the drawing.
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153
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 16
¯ and YZ ¯ are line segments. WX ¯ and YZ ¯ intersect at O. WX U
Z
m° W
k°
O
36°
X
n°
Y
2. m° =
The measure of ∠UOZ is
.
3. n° =
The measure of ∠YOX is
.
4. k° =
The measure of ∠WOY is
154
LESSON
EM2_0406SE_C_L16_classwork.indd 154
.
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 16
Name
16
Date
Write and solve an equation to find the unknown angle measure. 2.
1.
40°
a°
b°
The unknown angle measure is
The unknown angle measure is
.
3.
.
4.
d°
53°
145°
c°
The unknown angle measure is
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.
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The unknown angle measure is
.
155
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 16
Write and solve equations to find the unknown angle measures.
a. The measure of ∠ENG is
¯ intersect at N. ¯ and GH 5. EF
b. The measure of ∠GNF is
H
x°
E
150° N
.
30°
.
F
y°
G
a. The measure of ∠JNL is
¯ and LM̄ intersect at N. 6. JK J
M f° e°
N
c. The measure of ∠MNK is
g°
115° L
156
PROBLEM SET
EM2_0406SE_C_L16_problem_set.indd 156
b. The measure of ∠JNM is
. . .
K
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11/22/2021 4:43:26 PM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 16
a. The measure of ∠UNX is
¯ intersect at N. ¯, XY ¯, and AN 7. UV
b. The measure of ∠ANY is
A
p° m°
U
.
N
s°
Y
.
c. The measure of ∠XNV is
.
27° V
X
8. Eva turns a jar lid 70°. She then turns it 195° more. How much farther does Eva need to turn the lid to make 1 whole turn?
second turn 195°
first turn 70°
x°
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PROBLEM SET
157
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TC ▸ Lesson 16
Name
16
Date
∠AEB and ∠CED are straight angles.
Write and solve equations to find the measures of ∠AEC, ∠CEB, and ∠DEB.
F
D 66° A
x° C
The measure of ∠AEC is
The measure of ∠CEB is
The measure of ∠DEB is
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E y°
z° B
. . .
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159
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 17
Name
17
Date
Draw all the lines of symmetry on each figure. 1.
2.
3.
4.
5.
6.
7.
8.
9.
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161
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 17
10.
11.
12.
13.
14.
15.
162
LESSON
EM2_0406SE_D_L17_classwork.indd 162
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11/23/2021 10:15:17 AM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 17
The blue line represents a line of symmetry. Draw the other part of the figure. 16.
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EM2_0406SE_D_L17_classwork.indd 163
17.
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LESSON
163
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 17
Name
17
Date
Circle the figures that show a line of symmetry. 1.
2.
3.
4.
Draw all lines of symmetry on each figure. Write the number of lines of symmetry for each figure. 5. Lines of symmetry:
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EM2_0406SE_D_L17_problem_set.indd 165
6. Lines of symmetry:
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7. Lines of symmetry:
165
11/23/2021 10:13:26 AM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 17
8. Lines of symmetry:
9. Lines of symmetry:
10. Lines of symmetry:
11. Lines of symmetry:
12. Lines of symmetry:
13. Lines of symmetry:
The line represents a line of symmetry. Draw the other part of the figure. 14.
166
15.
PROBLEM SET
EM2_0406SE_D_L17_problem_set.indd 166
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11/23/2021 10:13:28 AM
EUREKA MATH2 Tennessee Edition
16.
4 ▸ M6 ▸ TD ▸ Lesson 17
17.
18. Does the circle show all possible lines of symmetry? How do you know?
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PROBLEM SET
167
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 17
Name
17
Date
Does each shape show a line of symmetry? 1. Yes
No
Yes
No
Yes
No
2.
3.
4. Draw all lines of symmetry for the shape shown.
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169
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 18 ▸ Assorted Triangles
G
I
H
E
F
C
A © Great Minds PBC •
D
B This document is the confidential information of Great Minds PBC provided solely for review purposes which may not be reproduced or distributed. All rights reserved.
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171
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 18 ▸ Assorted Triangles
R
K
J P
Q
L O
M
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EM2_0406SE_D_L18_removable_assorted_triangles.indd 173
N
173
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 18
Name
18
Date
1. Complete the table for each triangle.
Triangle
Attributes
△GHI G
I
H
△PQR R P Q
Classification Angle
Side Length
acute triangle
scalene triangle
obtuse triangle
isosceles triangle
right triangle
equilateral triangle
acute triangle
scalene triangle
obtuse triangle
isosceles triangle
right triangle
equilateral triangle
acute triangle
scalene triangle
obtuse triangle
isosceles triangle
right triangle
equilateral triangle
△ JKL K
J
L
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175
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 18
Triangle
Attributes
△MNO O
M
N
△ABC
Classification Angle
Side Length
acute triangle
scalene triangle
obtuse triangle
isosceles triangle
right triangle
equilateral triangle
∠A is a right angle.
C
Sides AB and AC have the same length. A
B
△DEF F
176
E
D
LESSON
EM2_0406SE_D_L18_classwork.indd 176
∠E is obtuse.
Sides ED and EF have the same length.
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 18
Name
18
Date
Use the triangles to complete problems 1–4.
B
A
C
D
F
E
1. Classify each triangle by its side lengths. Then classify each triangle by its angle measures. Equilateral
Isosceles
Scalene
B,
Acute
Right
Obtuse
A,
2. Which, if any, triangles are acute isosceles?
3. Which, if any, triangles are obtuse scalene?
4. Casey says that triangle C is a right equilateral triangle. Do you agree with Casey? Why?
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177
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 18
5. △STU has 1 line of symmetry. What does this tell you about the measures of ∠S and ∠T ?
S
U
T
6. △VWX has 3 lines of symmetry.
W
a. Fill in the blanks to name 3 pairs of angles that have equal measures.
∠
∠
and ∠
and ∠
∠
and ∠
b. The perimeter of △VWX is 42 centimeters. What is the length of each side?
V
178
PROBLEM SET
EM2_0406SE_D_L18_problem_set.indd 178
X
c. Classify △VWX based on the measure of its angles and sides.
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11/23/2021 10:12:40 AM
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 18
7. Use a ruler to connect 3 points to make a triangle.
A D
F
b. Classify your triangle based on its angles and sides.
B
C
a. Use the points you connected to name your triangle.
E
c. Oka connects points A, B, and C. She says, “I made △ABC.” Do you agree with Oka? Why or why not?
8. Can a triangle have 2 right angles? How do you know?
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PROBLEM SET
179
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TD ▸ Lesson 18
18
Date
Complete the table for each triangle.
Triangle
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Classification Angle Type
Side Length
Acute
Isosceles
Obtuse
Equilateral
Right
Scalene
Acute
Isosceles
Obtuse
Equilateral
Right
Scalene
Acute
Isosceles
Obtuse
Equilateral
Right
Scalene
181
EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TD ▸ Lesson 19
Date
19
1. Draw a right isosceles triangle.
Label each vertex to name the triangle as △BDU.
Then measure and label each angle and side length.
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183
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 19
2. Draw a scalene triangle.
Label each vertex to name the triangle as △TOP.
Then measure and label each angle and side length.
184
LESSON
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EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TD ▸ Lesson 19
Date
19
Use a protractor and a ruler to draw each triangle. Label the side lengths and angle measures. 1. Right isosceles triangle
2. Right scalene triangle
3. Obtuse scalene triangle
4. Acute isosceles triangle
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185
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 19
5. Draw all lines of symmetry in the triangles in problems 1–4. Did you draw at least 1 line of symmetry in each triangle? Explain.
Check true or false for each statement about equilateral △QRS.
R
4 cm
Q
4 cm
S
True
False
RS is 4 cm. 6. The length of ¯ 7. △QRS is an isosceles triangle. 8. △QRS has an obtuse angle.
9. The measure of ∠Q is equal to the measure of ∠S.
10. △QRS has 3 acute angles.
11. △QRS has exactly 2 lines of symmetry.
186
PROBLEM SET
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 19
12. Circle one statement from problems 6–11 that is false. Explain why the statement is false.
AB and ¯ BC . 13. Mr. Endo draws ¯ C
6 cm
A
6 cm
B
Shen says Mr. Endo can use the line segments to draw right isosceles △ ABC.
Zara says Mr. Endo can use the line segments to draw obtuse isosceles △ ABC.
Do you agree with Shen or Zara? Why?
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PROBLEM SET
187
EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TD ▸ Lesson 19
Date
19
1. Use a protractor and a ruler to draw an obtuse isosceles triangle. Label the side lengths and angle measures. Draw any lines of symmetry, if they exist.
2. Use a protractor and a ruler to draw a right scalene triangle. Label the side lengths and angle measures. Draw any lines of symmetry, if they exist.
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189
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ Sprint ▸ Decompose Fractions
Sprint Complete the equations. 1.
_3 = 1_ + ___
2.
_9 = 6_ + ___ + 1_
4 6
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4
6
4
6
6
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191
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ Sprint ▸ Decompose Fractions
A
Number Correct:
Complete the equations. 1.
2 1 = + 3 3 3
_ _ ___
19.
5 1 2 = + + 3 3 3 3
2.
3 = +1 3 3 3
_ ___ _
20.
8 2 = + +2 4 4 4 4
3.
3 1 = + 4 4 4
_ _ ___
21.
5 9 = +2+ 5 5 5 5
4.
4 = +2 4 4 4
_ ___ _
22.
12 2 3 = + + 6 6 6 6
5.
3 1 = + 5 5 5
_ _ ___
23.
8 15 1 = + + 8 8 8 8
6.
4 = +2 5 5 5
_ ___ _
24.
5 7 16 = + + 10 10 10 10
7.
5 4 = + 5 5 5
_ _ ___
25.
19 = 1 + + 4 12 12 12 12
8.
4 1 = + 6 6 6
_ _ ___
26.
45 55 102 = + + 100 100 100 100
9.
3 5 = + 6 6 6
_ ___ _
27.
2 1 = + 2 2 2
10.
6 5 = + 6 6 6
_ _ ___
28.
4 = +2 4 4 4
11.
7 2 = + 8 8 8
_ _ ___
29.
3 _1 = 1 + 1 + 1___
12.
8 = +4 8 8 8
_ ___ _
30.
6_ = 1 +
13.
__9 = __3 + ___
31.
9 _4 = 5 ___ + 1 1_ + 3
14.
5 10 = + 10 10 10
__ ___ __
32.
12 4_ = 2 1_ + 3 1_ +
15.
11 = 4 + 12 12 12
__ __ ___
33.
15 _ = 3 1_ +
16.
6 12 = + 12 12 12
__ ___ __
34.
4 17 __ = 5 ___ + 2 __ + 9 __
17.
8 78 = + 100 100 100
___ ___ ___
35.
19 __ = 1__ + 13 ___ + 4 __
18.
50 100 = + 100 100 100
___ ___ ___
36.
12 20 ___ = 2 ___ + 5 ___ + 12 ___
192
10
10
10
_ _ _ ___ _ _ ___ _ _ ___ _ _
__ _ _ ___
__ _ ___ _
__ ___ __ __ __ __ ___ __
___ ___ ___ ___ _ _ ___ _ ___ _
3
_
3 4
5
6
6 8
7 10
10 12
26 100
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3 +2 4
5
6
8
10
6 12
100
3
5
6
_
_
2 6
_
3 2 +4 8 8 3 10
12
8 100
10
3 12
100
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ Sprint ▸ Decompose Fractions
B
Number Correct: Improvement:
Complete the equations. 1.
2 1 = + 3 3 3
_ _ ___
19.
4 2 1 = + + 3 3 3 3
2.
3 = +2 3 3 3
_ ___ _
20.
7 2 = + +1 4 4 4 4
3.
2 1 = + 4 4 4
_ _ ___
21.
5 8 = + +2 5 5 5 5
4.
4 = +2 4 4 4
_ ___ _
21.
11 3 1 = + + 6 6 6 6
5.
2 1 = + 5 5 5
_ _ ___
23.
14 8 = + +1 8 8 8 8
6.
3 = +2 5 5 5
_ ___ _
24.
5 7 15 = + + 10 10 10 10
7.
5 4 = + 5 5 5
_ _ ___
25.
3 18 = + + 1 12 12 12 12
8.
3 1 = + 6 6 6
_ _ ___
26.
55 45 101 = + + 100 100 100 100
9.
4 = +2 6 6 6
_ ___ _
27.
2 1 = + 2 2 2
10.
6 5 = + 6 6 6
_ _ ___
28.
3 = +2 3 3 3
11.
6 3 = + 8 8 8
_ _ ___
29.
3 1_ = 1 + 1 + 1___
12.
8 = +4 8 8 8
_ ___ _
30.
6_ = 2 +
13.
__8 = __3 + ___
31.
9 4_ = 5 ___ + 3 + 1 1_
14.
5 10 = + 10 10 10
__ ___ __
32.
12 4_ = 3 1_ + 2 1_ +
15.
10 = 4 + 12 12 12
__ __ ___
33.
15 _ = 4 _ +
16.
6 12 = + 12 12 12
__ ___ __
34.
4 17 __ = 5 ___ + 9 __ + 2 __
17.
8 68 ___ = ___ + ___
35.
19 __ = 4 __ + 13 ___ + 1 __
18.
50 100 = + 100 100 100
___ ___ ___
36.
12 20 ___ = 2 ___ + 12 ___ + 5 ___
194
10
100
10
100
10
100
_ _ _ ___
_ _ ___ _ _ ___ _ _ __ _ _ ___
__ _ ___ _
__ ___ __ __ __ __ ___ __
___ ___ ___ ___ _ _ ___
_ ___ _
3
3
_3 + 1
3 4
5
6
6 8
7 10
10 12
26 100
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4
5
6
3 8
10
3 12
100
6
_
5
_
2 6
_
2 + 31 8 8 10
12
100
3 10
6 12
8 100
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EUREKA MATH2 Tennessee Edition
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4 ▸ M6 ▸ TD ▸ Lesson 20 ▸ Centimeter Grid Paper
195
EUREKA MATH2 Tennessee Edition
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4 ▸ M6 ▸ TD ▸ Lesson 20 ▸ Polygons for Game
197
4 ▸ M6 ▸ TD ▸ Lesson 20 ▸ Guess My Rule Game Board
Follows Rule
Does Not Follow Rule
EUREKA MATH2 Tennessee Edition
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 20 ▸ Rules Page
Polygons with at least 1 right angle
Polygons with more than 1 right angle
Polygons with no right angles
Polygons with all angles having the same measure
Polygons with exactly 1 pair of angles having the same measure
Polygons with no angles having the same measure
Polygons with at least 1 acute angle
Polygons with at least 1 obtuse angle
Polygons with 2 pairs of perpendicular sides
Polygons with at least 1 pair of parallel sides
Polygons with more than 1 pair of parallel sides
Polygons with no parallel sides
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201
EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 20
Name
20
Date
1. Ivan sorts polygons A–J based on their sides. Exactly 1 Pair of Parallel Sides
I
B
At Least 2 Pairs of Parallel Sides
A
D
C
F
G J
E
H
a. Mark the pairs of parallel sides on each polygon. Polygon B is done for you.
b. Which polygons are trapezoids?
c. Which polygons are parallelograms?
d. Ivan notices that none of the polygons are triangles. Explain why triangles do not belong in either category.
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4 ▸ M6 ▸ TD ▸ Lesson 20
e. Ivan wants to sort the polygons based on the types of their angles. Write the letters of the polygons that appear to belong in each category. At Least 1 Right Angle
No Right Angles
2. Amy draws polygons that have at least 2 obtuse angles. Pablo draws polygons that have at least 2 acute angles. ’s Polygons
’s Polygons
a. Write the names Amy or Pablo in the blanks to indicate which polygons Amy and Pablo draw.
204
PROBLEM SET
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EUREKA MATH2 Tennessee Edition
4 ▸ M6 ▸ TD ▸ Lesson 20
b. Does the trapezoid belong in one group or both groups? Explain how you know.
c. Does the rectangle belong in one of the groups? Explain how you know.
3. Luke and David classify polygons K–N. Luke says that all the polygons appear to have at least 1 right angle. David says that all the polygons appear to have at least 1 pair of perpendicular sides. Who is correct? Explain how you know.
K
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L
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M
N
PROBLEM SET
205
EUREKA MATH2 Tennessee Edition
Name
4 ▸ M6 ▸ TD ▸ Lesson 20
20
Date
Jayla sorts polygons A–F based on their angles. Exactly 2 Right Angles
A
At Least 3 Right Angles
D
E
B
C
F
a. Mark the right angles on each polygon. Polygon A is done for you. b. Which polygons are quadrilaterals? c. Which polygons are rectangles?
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4 ▸ M6
Credits Great Minds® has made every effort to obtain permission for the reprinting of all copyrighted material. If any owner of copyrighted material is not acknowledged herein, please contact Great Minds for proper acknowledgment in all future editions and reprints of this module. Cover, Frank Stella (b. 1936), Tahkt-I-Sulayman Variation II, 1969, acrylic on canvas. Minneapolis Institute of Arts, MN. Gift of Bruce B. Dayton/Bridgeman Images. © 2020 Frank Stella/Artists Rights Society (ARS), New York; page 17, Charles Demuth (1883–1935). My Egypt. 1927. Oil, fabricated chalk, and graphite pencil on composition board. Overall: 35 15/16 x 30 in. (91.3 x 76.2 cm). Purchase, with funds from Gertrude Vanderbilt Whitney. Inv. N.: 31.172 Digital image © Whitney Museum of American Art/Licensed by Scala/Art Resource, NY; page 162, (top row) Serafima Dashkevich/Shutterstock. com, Engineer studio/Shutterstock.com, (middle row), Nicole Kwiatkowski/Shutterstock.com, Andrew Mayovskyy/Shutterstock.com, (bottom row) Shanvood/Shutterstock.com, Sakchai.K/Shutterstock.com; All other images are the property of Great Minds. For a complete list of credits, visit http://eurmath.link/media-credits.
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4 ▸ M6
Acknowledgments Kelly Alsup, Leslie S. Arceneaux, Lisa Babcock, Adam Baker, Christine Bell, Reshma P. Bell, Joseph T. Brennan, Dawn Burns, Leah Childers, Mary Christensen-Cooper, Nicole Conforti, Jill Diniz, Christina Ducoing, Janice Fan, Scott Farrar, Gail Fiddyment, Ryan Galloway, Krysta Gibbs, Torrie K. Guzzetta, Kimberly Hager, Jodi Hale, Karen Hall, Eddie Hampton, Andrea Hart, Rachel Hylton, Travis Jones, Jennifer Koepp Neeley, Liz Krisher, Courtney Lowe, Bobbe Maier, Ben McCarty, Maureen McNamara Jones, Ashley Meyer, Bruce Myers, Marya Myers, Geoff Patterson, Victoria Peacock, Maximilian Peiler-Burrows, Marlene Pineda, Elizabeth Re, Jade Sanders, Deborah Schluben, Colleen Sheeron-Laurie, Jessica Sims, Tara Stewart, Mary Swanson, James Tanton, Julia Tessler, Jillian Utley, Saffron VanGalder, Rafael Velez, Jackie Wolford, Jim Wright, Jill Zintsmaster Trevor Barnes, Brianna Bemel, Adam Cardais, Christina Cooper, Natasha Curtis, Jessica Dahl, Brandon Dawley, Delsena Draper, Sandy Engelman, Tamara Estrada, Soudea Forbes, Jen Forbus, Reba Frederics, Liz Gabbard, Diana Ghazzawi, Lisa Giddens-White, Laurie Gonsoulin, Nathan Hall, Cassie Hart, Marcela Hernandez, Rachel Hirsh, Abbi Hoerst, Libby Howard, Amy Kanjuka, Ashley Kelley, Lisa King, Sarah Kopec, Drew Krepp, Crystal Love, Maya Márquez, Siena Mazero, Cindy Medici, Ivonne Mercado, Sandra Mercado, Brian Methe, Patricia Mickelberry, Mary-Lise Nazaire, Corinne Newbegin, Max Oosterbaan, Tamara Otto, Christine Palmtag, Andy Peterson, Lizette Porras, Karen Rollhauser, Neela Roy, Gina Schenck, Amy Schoon, Aaron Shields, Leigh Sterten, Mary Sudul, Lisa Sweeney, Samuel Weyand, Dave White, Charmaine Whitman, Nicole Williams, Glenda Wisenburn-Burke, Howard Yaffe
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Talking Tool Share Your Thinking
I know . . . . I did it this way because . . . . The answer is
because . . . .
My drawing shows . . . . I agree because . . . .
Agree or Disagree
That is true because . . . . I disagree because . . . . That is not true because . . . . Do you agree or disagree with
Ask for Reasoning
Why did you . . . ? Can you explain . . . ? What can we do first? How is
Say It Again
related to
?
I heard you say . . . . said . . . . Another way to say that is . . . . What does that mean?
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? Why?
Thinking Tool When I solve a problem or work on a task, I ask myself Before
Have I done something like this before? What strategy will I use? Do I need any tools?
During
Is my strategy working? Should I try something else? Does this make sense?
After
What worked well? What will I do differently next time?
At the end of each class, I ask myself
What did I learn? What do I have a question about?
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MATH IS EVERYWHERE Do you want to compare how fast you and your friends can run? Or estimate how many bees are in a hive? Or calculate your batting average? Math lies behind so many of life’s wonders, puzzles, and plans. From ancient times to today, we have used math to construct pyramids, sail the seas, build skyscrapers—and even send spacecraft to Mars. Fueled by your curiosity to understand the world, math will propel you down any path you choose. Ready to get started?
Module 1 Place Value Concepts for Addition and Subtraction Module 2 Place Value Concepts for Multiplication and Division Module 3 Multiplication and Division of Multi-Digit Numbers Module 4 Foundations for Fraction Operations Module 5 Place Value Concepts for Decimal Fractions Module 6 Angle Measurements and Plane Figures
What does this painting have to do with math? American abstract painter Frank Stella used a compass to make brightly colored curved shapes in this painting. Each square in this grid includes an arc that is part of a design of semicircles that look like rainbows. When Stella placed these rainbow patterns together, they formed circles. What fraction of a circle is shown in each square? On the cover Tahkt-I-Sulayman Variation II, 1969 Frank Stella, American, born 1936 Acrylic on canvas Minneapolis Institute of Art, Minneapolis, MN, USA Frank Stella (b. 1936), Tahkt-I-Sulayman Variation II, 1969, acrylic on canvas. Minneapolis Institute of Art, MN. Gift of Bruce B. Dayton/ Bridgeman Images. © 2020 Frank Stella/Artists Rights Society (ARS), New York
ISBN 978-1-63898-513-6
9
781638 985136