The Cuisenaire Gattegno Method Of Teaching Mathematics
Up to this point pupils have been directed from multiplications to fractions. This procedure is now reversed, and questions of the type “What is of 5 equal to?’ are asked. This helps develop the concept of fractions as operators. From previous activities the pupil has some knowledge of how to proceed, but for each question the child should be left to work according to his own experience. For example, when asked to find × 7 = , he may have to place white rods alongside the black to reach this pattern:
FIG. 65. Or again, if he has to find × 10, and he does not realize that the red rod is one fifth of the orange rod, he will need to try various rods until he finds out that only if he chooses red rods will the requirement be met.
Published on Nov 18, 2009