Marja Van Den Heuvel-Panhuizen - Vol. 15 Num. 3 (1995) | ||
Student-generated problems: Easy and difficult problems on percentage | 21-27 | |
Marja Van Den Heuvel-Panhuizen - Vol. 25 Num. 2 (2005) | ||
The role of contexts in assessment problems in mathematics | 2-9 |
for the learning of mathematics
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