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A teaching experience related to the concept of volume in grade 7 (12 to 13 year olds). Ein Unterrichtsversuch zum Volumenbegriff in der 7. Klasse - 12-13jaehrige(Une experience didactique sur le concept de volume en classe de cinquieme - 12-13 ans). (French)
Rech. Didact. Math. (1983) v. 4(1) p. 71-120. [ISSN 0246-9367]
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