Report on the Relations between Arithmetic and AlgebraDr. Hans Freudenthal (Ed.)I. Joh.H. Wansink - Arithmetic and algebra in the Dutch school system
II. Hans Freudenthal - Logical analysis and critical survey
III. W.J. Bos - Stimulating and motivating the student
IV. P.M. van Hiele - The relation between theory and problems in arithmetic and algebra
V. Joh.H. Wansink - The extensions of the number concept; the properties of the operations
VI. H. Streefkerk - The introduction and the use of lett...
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