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Mathematical knowledge at primary schools. Vol. 4. Knowledge acquired by the end of the fourth year of schooling. Connaissance mathematiques a l’ecole primaire. Fasc. 4. Bilan des acquisitions en fin de quatrieme annee. Mathematikkenntnisse an Primarschulen. Bd. 4. Kenntnisse nach dem vierten Schuljahr. (French)
Bern: Lang. 1991. 132 p. Ser. Title: Collection exploration: Cours et contributions pour les sciences de l’education. [ISBN 3-261-03969-8]
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