The Cuisenaire Gattegno Method Of Teaching Mathematics
Shut your eyes and read them. Make a staircase showing the odd numbers up to 21. (See exercises 37-39 in Part II, Book I of Mathematics). Discovering prime and composite numbers Let us look for rods which can be matched in length with trains of rods of one color onlyâ€”other than the white. Can it be done for the orange, the light green, the blue, the pink, the yellow rods?
FIG. 77. From this, pupils discover that some numbers can be decomposed into factors, while others cannot.
Published on Nov 18, 2009