Science - 6th Grade - reproduction: Growth and Development

Class:

SCIENCE

Teacher's notes

Objectives

Reproduction: Growth and Development

Date: August 10th

Vocabulary

Link and Learn

In‐Class Survey Prepared by

2009 1

6th DaVinci ‐ Reproduction: Growth and Development Name

Reward

Name

Carlos A.

Martín

Joaquín

Maylin

Victoria

Carlos R.

Mariana

Isabel

Christopher

Sthefanny

José

Ana Caroline

Santiago

Karen

Joshua

Erick

Héctor

Bryan

Gabriela

Angie

Alexandra

Sandra

Humberto

Arturo

Giosué

Maria Fernanda

Ariana

Daniel

Alessio

Paola

Reward

2

6th Rembrandt ‐ Reproduction: Growth and Development Name

Name

Reward

Mariano

Enzo

Miguel

Valeria P.

Melanie

Henry

Alejandro

Gonzalo

Adriana

Sebastian

Fabrizio

Mariano

Felipe

Alondra

Sol

Bruno

Edinson

Camila

Valeria J.

Jimena

Daniela

Rodrigo

Eduardo

María Laura

José F.

Diana

Kimberly

Jesus

Reward

Alexandra

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Let's remember previous learned concepts...

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Life Cycle • All living organisms go through stages in their lives.

Example of stages: birth and dead.

• In between these two stages many or few changes happen.

• The process happens again in the next generation, and so on.

• A life cycle describes all the stages in a living organism’s development from one generation to the next.

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6

New knowledge beginning

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Reproduction • A cycle has no beginning and no end.

• However, in living organisms, the stages include birth, and later, may include reproduction.

• Reproduction is a process that a living organism uses to produce more of its own kind.

• The changes between birth and reproduction varies from one organism to another.

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How do Organisms Reproduce?

• All organisms reproduce, but not through the same way.

• Animals reproduce in two basic ways: sexually and asexually.

• Asexual reproduction occurs when one cell divides into two cells, with the same amount and type of information.

• Sexual reproduction occurs when a sperm cell from a male and an egg from a female join to make a fertilized egg.

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MITOSIS

SEXUAL REPRODUCTION SEXUAL REPRODUCTION MEIOSIS

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Asexual Reproduction • Asexual reproduction is much simpler, it doesn’t involve a sperm and egg.

• Many invertebrates use asexual reproduction to produce offspring.

• If a piece of a sponge falls off, it can grow into a new adult sponge, this is called regeneration.

• Others like anemones and sea corals reproduce asexually by splitting in half.

• Hydras, form a bud (budding) that falls off to become a new hydra.

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Budding

Paramecium

Yeast

Hydra

Fission

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Cell Cycle • Cells also have cycles, different stages happening in a specific sequence and under certain conditions.

• As any other life cycle, it starts by birth (New cell), growth (G1), preparation (S), development and maturation (G2) and reproduction (Cell Division).

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MITOSIS

• All cells use mitosis at one point or another.

• Mitosis is a type of cell division where two cells (daughter cells) are generated from one single cell.

• The daughter cells are identical copies of the original one, with the same genetic information.

• The daughter cells are clones.

• Mitosis has 4 stages: PROPHASE, METAPHASE, ANAPHASE and TELOPHASE. • These stages are continuous and are regulated by proteins and specific events in and out of the cell.

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MEIOSIS • Meiosis is a type of cell division, however, it is used only by organisms that go through Sexual Reproduction.

• Meiosis is a process with 2 divisional stages, each of these stages contain the same sub‐stages as in Mitosis: Prophase, Metaphase, Anaphase and Telophase.

• These stages and sub‐stages are usually not continuous, but they are sequential.

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Growth and Development • After birth, humans go through infancy and childhood, followed by adolescence and finally, adulthood.

• Many other kinds of animals develop into completely different forms as they grow through their life cycle, this is called metamorphosis.

• Examples: tadpoles develop legs and lungs while becoming frogs; butterfly larvae form a cocoon, from where a butterfly arises.

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Reproduction in Humans

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Female Reproductive System

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Male Reproductive System

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Fertilization in Humans

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Assignment ‐ Da Vinci Groups

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Assignment ‐ Rembrandt Groups

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Group Assignment • The Class will be divided in 10 groups of 3 students each, selected randomly.

• There are 10 different topics, one topic will be randomly assigned to each group.

• Each group must investigate its topic and present a 3‐ minute video or 15‐slide presentation, as visual support.

• Each member of the group must give a 2‐minute oral presentation. Reading during the presentation is not allowed.

• Deadline: Monday, August 17th.

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Topics to Select Reproductive techniques used in Kingdom Monera.

Reproductive techniques used in Kingdom Protista.

Reproductive techniques used in Kingdom Fungi.

Reproductive techniques used in Kingdom Plantae (Angiosperms).

Reproductive techniques used in Kingdom Plantae (Gymnosperms).

Reproductive techniques used in Kingdom Animalia (Invertebrates).

Reproductive techniques used in Kingdom Animalia (Vertebrates).

Reproductive situation in Cheetahs.

Reproductive situation in Panda Bears.

Reproductive situation in Tasmanian Devil.

G1

G6

G2

G7

G3 G4

G8 G9

G5

G10

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K-W-L Chart What I KNOW about this topic

What I WANT to know about this topic

What I LERANED about this topic

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SURVEY If you want to contribute in improving your Science class, click in the survey link:

Term III ‐ 6th Da Vinci ‐ Class 1

Term III ‐ 6th Rembrandt ‐ Class 1

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Resources Used Slide Resource (Group)

Origin

Description

G1 ‐ 2 Image

Da Vinci

http://bit.ly/N0Btd

G1 ‐ 3 Image

Rembrandt

http://bit.ly/X5hOY

G1 ‐ 4 Image

Nutrition Matters

http://bit.ly/xLK2f

G1 ‐ 5 Images

Growth Movement Respiration Feeding Reproduction Excretion Sensitivity

http://bit.ly/11k7sW http://bit.ly/LMnWO http://bit.ly/nHdTZ http://bit.ly/RH4eQ http://bit.ly/zjqZo http://bit.ly/eOboy http://bit.ly/CbXMA

G1 ‐ 7 Animations Life Processes

Notebook Gallery

G1 ‐ 8 Animation Life Processes

Notebook Gallery

G1‐9,10 Image

Plant

Notebook Gallery

G1‐11,12 Activities

Plants Needs

Coralie Olesen ‐ Australia http://bit.ly/zpNvE

G1 ‐ 18 Image

Movie Reel

http://bit.ly/GOErT

G1 ‐ 19 Movie

Photosynthesis

Unknown

G1 ‐ 20 Image

Sun

Notebook Gallery

G1‐21,22 Animations Photosynthesis

Unknown

G1 ‐ 25 Images

http://bit.ly/VcDq4 http://bit.ly/eFtIv

Xylem and Phloem 1 Xylem and Phloem 2

G1 ‐ 26 Animation Leaf Structure

Notebook Gallery

G1 ‐ 27 Image

Animal Nutrition

http://bit.ly/CB9Kh

G1 ‐ 29 Image

Nutritional Pyramid

http://bit.ly/Islbn

G1 ‐ 31 Images

Lion Pelican Crocodile Zebra

http://bit.ly/14a2LB http://bit.ly/eeTZU http://bit.ly/T2TNR http://bit.ly/15OoKi

G1 ‐ 32 Images

Birds' beaks Big mouth

http://bit.ly/70wOS http://bit.ly/2tjoq2

G1 ‐ 34 Animation Human Digestive System

Notebook Gallery

G1 ‐ 35 Animation Kid working with computer Notebook Gallery

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Teacher's Notes This class has been designed to cover the topic of Reproduction: Growth and Development from Monday August 10th till Friday August 10th.

For further knowledge about this topic: 1. Conduct a thorough search under the topic: Reproduction: Growth and Development on the Web, books and magazines.

2. If findings are not specific, ask your teacher for suggestions.

BACK 32

Objectives • Identify the characteristics, functions, and mechanisms of the Reproduction in living organisms.

• Compare and Contrast Asexual and Sexual reproduction.

Note: All, or most, of the objectives will be covered during class time, however the student must be responsible for those objectives not covered or concluded.

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Vocabulary • • • • • • • •

Reproduction Life Cycle Cell Cycle Division Mitosis Meiosis Female Reproductive System Male Reproductive System

Note: Most of the vocabulary words will be covered during class time, however the student must be responsible for those words not covered or concluded.

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Link and Learn You can visit the following websites to improve your understanding on the present topic: • • • •

http://science‐learning2009.wikispaces.com http://learningandscience.blogspot.com http://linkandlearn.wikispaces.com http://libraryatstgeorge.blogspot.com

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Prepared by

Gerardo LAZARO Science Lead Teacher Email: glazaro@sanjorge.edu.pe Wiki: http://science‐learning2009.wikispaces.com Blog: http://learningandscience.blogspot.com Twitter: http://twitter.com/glazaro

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Term III ­ Class 1 Reproduction Grade: Subject: Date:

6th Grade Science ­ Da Vinci August 10th, 2009

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1

What was your UNDERSTANDING of the topic: "Reproduction: Growth and Development"

A

I understood 25% of the whole topic

B

I understood 50% of the whole topic

C

I understood 75% of the whole topic

D

I understood 100% of the whole topic

E

I didn't understand the class

38

2

What was your level of EFFORT to understand the topic?

A

My effort level was 25%

B

My effort level was 50%

C

My effort level was 75%

D

My effort level was 100%

E

I didn't put any effort

39

3

What RESOURCES helped you understand the topic?

A

Text

B

Images

C

Animations

D

Videos

E

Teacher's Speech

F

None

G

Other

40

4

How does the SMART Board help you understand the topic?

A

It helps me visualize concepts

B

It helps understand difficult concepts

C

Touching things helps me learn

D

Interacting with the information makes it easier to understand

E

I prefer less effects or audiovisual resources

F

It doesn't really help much

G

I don't like it

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Term III ­ Class 1 Reproduction Grade: Subject: Date:

6th Grade Science ­ Rembrandt August 10th, 2009

42

1

What was your UNDERSTANDING of the topic: "Reproduction: Growth and Development"

A

I understood 25% of the whole topic

B

I understood 50% of the whole topic

C

I understood 75% of the whole topic

D

I understood 100% of the whole topic

E

I didn't understand the class

43

2

What was your level of EFFORT to understand the topic?

A

My effort level was 25%

B

My effort level was 50%

C

My effort level was 75%

D

My effort level was 100%

E

I didn't put any effort

44

3

What RESOURCES helped you understand the topic?

A

Text

B

Images

C

Animations

D

Videos

E

Teacher's Speech

F

None

G

Other

45

4

How does the SMART Board help you understand the topic?

A

It helps me visualize concepts

B

It helps understand difficult concepts

C

Touching things helps me learn

D

Interacting with the information makes it easier to understand

E

I prefer less effects or audiovisual resources

F

It doesn't really help much

G

I don't like it

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