00675nam a2200217Ia 4500 CTU_93209 210402s9999 xx 000 0 und d 110.18 510.7 S825 Stenbring, Heinz The contruction of new mathematical knowlwdge in class interaction : An Epistemological perspective Heinz Stenbring New York Springer 2005 Mathematics,Teacher,Interaction analysis in education Study and teaching,Student relationships Trọng Hải Trung tâm Học liệu Trường Đại học Cần Thơ