Delta-K,  Teaching Ideas,  Volume 20, Issue 3

Ideas

Journal of the Mathematics Council of the Alberta Teachers’ Association

Volume 20 Issue 3, April 1981

31 – 36

Ideas

Prepared by M. Bernadine Tabler and Marilyn Hall Jacobson

Reprinted with permission from the Arithmetic Teacher, September 1980 (Vol. 28, No. 1), copyright 1980 by the National Council of Teachers of Mathematics.