for the learning of mathematics |
| Leen Streefland - Vol. 15 Num. 3 (1995) | ||
| Student-generated problems: Easy and difficult problems on percentage | 21-27 | |
| Leen Streefland - Vol. 18 Num. 1 (1998) | ||
| Learning mathematics through conversation: is it as good as they say? | 41-51 | |
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