1 Brownell,W.A, "When is arithmetic meaningful?" 38 (38): 481-498, 1945
2 Hoyles C, "Unfolding Meanings for Reflective Symmetry" 2 : 27-59, 1997
3 Cooper,M, "Three-dimensional symmetry" 23 : 179-202, 1992
4 Arcavi.A, "The role of visual representations in the learning of mathematics" 52 : 215-338, 2003
5 Marnmana, C, "The evolution of geometry education since 1900 in Perspectives on the Teaching of Geometry for the 21st Century" Kluwer Academic Publishers 193-235, 1998a
6 Vygotsky,L.S, "Mind in society" Harvard University Press 1978
7 Sfard,A, "Learning discourse: Communicational frarnework for investigating mathematics learning" 2002
8 Cohen, D. K., "Instruction, capacity, and improvement (CPRE Research Report No. RR-043) http://www.cpre.org/Publications/rr43.pdf" University of Pennsylvania, Consortium for Policy Research in Education
9 Clements, D. H, "Geometry and spatial reasoning in Handbook of Research on Mathematics Teaching and Learning" Macmillan 420-464, 1992
10 Ben-Yehuda, M., "Doing wrong with words or what ars students' access to arithmetical discourses" 36 (36): 176-247, 2005
1 Brownell,W.A, "When is arithmetic meaningful?" 38 (38): 481-498, 1945
2 Hoyles C, "Unfolding Meanings for Reflective Symmetry" 2 : 27-59, 1997
3 Cooper,M, "Three-dimensional symmetry" 23 : 179-202, 1992
4 Arcavi.A, "The role of visual representations in the learning of mathematics" 52 : 215-338, 2003
5 Marnmana, C, "The evolution of geometry education since 1900 in Perspectives on the Teaching of Geometry for the 21st Century" Kluwer Academic Publishers 193-235, 1998a
6 Vygotsky,L.S, "Mind in society" Harvard University Press 1978
7 Sfard,A, "Learning discourse: Communicational frarnework for investigating mathematics learning" 2002
8 Cohen, D. K., "Instruction, capacity, and improvement (CPRE Research Report No. RR-043) http://www.cpre.org/Publications/rr43.pdf" University of Pennsylvania, Consortium for Policy Research in Education
9 Clements, D. H, "Geometry and spatial reasoning in Handbook of Research on Mathematics Teaching and Learning" Macmillan 420-464, 1992
10 Ben-Yehuda, M., "Doing wrong with words or what ars students' access to arithmetical discourses" 36 (36): 176-247, 2005
11 Sfard, A, "Cognition as communication: Rethinking learning-by-talking through multi-faceted analysis of students’ mathematical interactions. Mind" 8 (8): 42-76, 2001
12 Cazden,C, "Classroom discourse and student learning. In Classroom Discourse" Heinemann 60-80, 2001
13 Mammana, C, "Changes and trends in geometry curricula. Perspectives on the Teaching of Geometry for the 21st Century" Kluwer Academic Publishers 235-263, 1998b
14 Rogoff,B, "Apprenticeship in thinking" Oxford University Press 1990
15 Gutierrez, A., "An alternative paradigm to evaluate the acquisition of the van Hiele levels" 22 : 237-251, 1991