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Chapter 7 The Study Of Numbers Up To 20

twelve different writings, all of which the children should be encouraged to find; for instance: 5 + 7 = 12 7 + 5 = 12 12 = 5 + 7 12 = 7 + 5

12 – 5 = 7 12 – 7 = 5 7 = 12 – 5 5 = 12 – 7

12 – 7 – 5 = 0 12 – 5 – 7 = 0 12 – (5 + 7) = 0 12 – (7 + 5) = 0

Each particular combination of 12 could be studied in this way. Addition with a gap Both additions and subtractions can be read or written by just looking at a pattern. This could be presented as follows: Form the length which represents 12 with your rods and put the black rod alongside. What must be added to 7 to make 12? or which rod makes up the difference between 12 and 7? Using the notation for addition, this could be written as 7 + = 12, 12 = 7+ . Translating written mathematical statements into rod patterns Practice in the reverse process of making rod patterns from written mathematical statements is an experience which should

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The Cuisenaire Gattegno method of teaching Mathematics  
The Cuisenaire Gattegno method of teaching Mathematics  

The Cuisenaire Gattegno method of teaching Mathematics

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