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The Journal of Mathematical Behavior > 2018 > 51 > C > 56-70
Journal of Mathematical Behavior > 2006 > 25 > 3 > 196-207
Educational Studies in Mathematics > 2005 > 60 > 3 > 297-321
The Journal of Mathematical Behavior > 2018 > 51 > C > 56-70
Journal of Mathematical Behavior > 2006 > 25 > 3 > 196-207
Educational Studies in Mathematics > 2005 > 60 > 3 > 297-321