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The Cuisenaire GattegnoChapter Method10 Of Teaching Mathematics The Study Of Numbers Up To 1000—I

8 Manipulating factors for easier multiplication; for example: 18 × 14 = 2 × 9 × 2 × 7 = 9 × 7 × 2 × 2 = 63 × 2 × 2 = 126 × 2 = 252 9 Doubling and trebling to find useful products for easier multiplication and division; for e× ample, we know that 896 = 8 × 112. Therefore 16 × 56 = 896; 896 ÷ 224 = 4; and 900 ÷ 224 = 4 r. 4. 10 Finding the squares of numbers and carrying out some interesting exercises with squares; for example, finding out that the sum of first four odd numbers=42. These exercises aim at developing the ability to think mathematically. Those involving the creation of mathematical statements about numbers, says Gattegno, are particularly valuable.

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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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