Address to the first conference of I.G.P.M.E. (International Group for the Psychology of Mathematical Education), at Utrecht 29 August 1977 Hans Freudenthal Report Pages: 1 - 5
Une etude sur l'approche du nombre par l'eleve du cours preparatoire Annie BessotClaude Comiti OriginalPaper Pages: 17 - 39
Some observational results concerning the mental constitution of the concept of fraction Leen Streefland OriginalPaper Pages: 51 - 73
Testing the maturity for learning the algorithm of multiplication Hans Ter Heege OriginalPaper Pages: 75 - 83
Children's conditional reasoning part II: Towards a reliable test of conditional reasoning ability N. HadarL. Henkin OriginalPaper Pages: 97 - 114
Children's conditional reasoning part III: A design for research on children's learning of conditional reasoning and research findings N. Hadar OriginalPaper Pages: 115 - 140