Divide and Conquer: Unit Strips to the Rescue
Frances R. Curcio, Francine Sicklick and Susan B. TurkelТом:
35
Мова:
english
Журнал:
The Arithmetic Teacher
DOI:
10.2307/41194279
Date:
December, 1987
Файл:
PDF, 1.21 MB
english, 1987