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  • Titelblatt

    Selected results from the rational number project

    Post, Thomas R. ; Behr, Merlyn J. ; Lesh, Richard ; Wachsmuth, Ipke ; Streefland, Leen (Hrsg.)
    In: Proceedings of the Ninth International Conference for the Psychology of Mathematics Education, Jg. vol. 1: Individual contributions, S. 342-351