The Cuisenaire Gattegno Method Of Teaching Mathematics
FIG. 69. Place a white rod end to end with a dark green one and another white rod end to end with a pink. What does the rod pattern read now? (7 – 5 = 2).
FIG. 70. Add a yellow rod to each line. Does the difference remain the same? Can you read this new pattern? (12 – 10 = 2).
The Cuisenaire Gattegno method of teaching Mathematics