Monograph No. 9: 56 Ideas – Make It, Take It
December 1987
Publication of the Mathematics Council of The Alberta Teachers’ Association
Editors William Bober and John Percevault
Robert Michie
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Topic: Subtraction — (a) using 1 set (b) using 2 sets
Division — (a) share evenly (b) how many for each
Dienes Blocks, Base 10 – (a) ones (b) tens (c) hundreds