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1. Radical constructivism in action   Publication: New York : Falmer, 2000 . 1 online resource (xvi, 327 p.) : Date:2000 Availability: No items available: Actions: Add to cart
2. Piagetian cognitive - devleopment research and mathematical education /   Publication: Washington : National Council of Teachers of Mathematics, 1971 . xi, 243p.: , ''Proceedings of a conference conducted at Columbia University, October 1970''. Date:1971 Availability: Copies available: Turkeyen Campus Education & Humanities [LB1589 P52] (2), Actions: Add to cart No cover image available No cover image available