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Assessing children’s development in geometry using the van Hiele levels. Bewertung der Entwicklung von Kindern in der Geometrie mit Hilfe der van Hiele-Niveaus. (English)
Research reporting sections, National Council of Teachers of Mathematics 59th annual meeting. Forschungsgruppen des National Council of Teachers of Mathematics, 59. Jahrestagung. Editor(s): Higgins, J.L. Ohio State Univ., Columbus (USA). ERIC Clearinghouse for Science, Mathematics and Environmental Education nd . p. 31-32 of 60 p. Ser. Title: Mathematics education reports. Conference: 59. annual meeting of the National Council of Teachers of Mathematics, Saint Louis, MO (USA), 22-25 Apr 1981
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