yish exploratory [5 articles]
Journal of Mathematical Behavior, Vol. 22, No. 4. (2003), pp. 479-495.
Journal of Mathematical Behavior, Vol. 22, No. 4. (2003), pp. 465-477.
International Journal of Computers for Mathematical Learning, Vol. 9, No. 3. (January 2004), 309.
International Journal of Computers for Mathematical Learning, Vol. 9, No. 3. (January 2004), 251.
International Journal of Computers for Mathematical Learning, Vol. 10, No. 2. (January 2005), pp. 75-108.
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