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Tous les puzzles sont dans un cadre en bois de 40 x 28 cm
• drei rosa Kästen
As with all our timelines this too is constructed from material that doesn't need to be laminated
Hauteur : 40 cm
Dimension : 17 x 17 cm env
Psychoarithmic: Hard Cover (anglais) educo-0-3 Tous les puzzles sont dansPsychoarithmetic 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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