TY  - GEN
AU  - Skemp, Richard
TI  - Concept formation and its significance in mathematics teaching and  syllabus reform
KW  - Psicologia Educacional
KW  - 3500 - Psicologia Educacional
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm
ER  -