Representing motion: an experiment in learning
Speiser, B.; Walter, C.; Maher, C.A.
Promoting productive mathematical classroom discourse with diverse students
High school students' understandings of geometric transformations in the context of a technological environment
Perspectives on technology mediated learning in secondary school mathematics classrooms
Goos, M.; Galbraith, P.; Renshaw, P.; Geiger, V.
The many facets of a definition: The case of periodicity
van Dormolen, J.; Zaslavsky, O.