Transition Boards: Moving from Materials to Symbols in...

Transition Boards: Moving from Materials to Symbols in Subtraction

Charles S. Thompson and John Van de Walle
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Volume:
28
Language:
english
Journal:
The Arithmetic Teacher
DOI:
10.2307/41162218
Date:
January, 1981
File:
PDF, 1.29 MB
english, 1981
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