Search results for: John G. Hedberg
British Journal of Educational Technology > 45 > 2 > E10 - E10
British Journal of Educational Technology > 45 > 2 > E8 - E8
Computers & Education > 2010 > 54 > 2 > 462-478
Journal of Mathematical Behavior > 2005 > 24 > 3-4 > 238-252
Computers & Education > 2000 > 34 > 3-4 > 163-176