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Dimension : 17 x 17 cm env
Ce puzzle se compose de 18 surfaces
Als Erweiterung der Steckkarten Südamerika lernt das Kind die Fahnen von Südamerika kennen
8 poids en plastique (2 x 4
Hauteur : 40 cm
Psychoarithmic: Hard Cover (anglais) educo-0-3 Dimension : 17 x 17Psychoarithmetic by Maria Montessori provides a view of the working of the human mind through the lens of exercises and study of mathematics (arithmetic, geometry, and algebra and their relationships), as well as applied mathematics in the form of measurement. The intention of the book, to forge a link between psychology and mathematics, is obvious from the title. The book demands that the reader attend to each and every detail while at the same time
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