78.
Mathematiques Modernes : Par les nombres en Couleurs
by Gattegno, Caleb
ISBN: 9780878253456
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Fractions Ordinaires et decimales, Pourcentages
by Gattegno, Caleb
ISBN: 9780878253586
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Ces enfants nos Maitres : Ou la subordination de l'enseignement a L'apprentissage
by Gattegno, Caleb
ISBN: 9780878253630
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Algebre et geometrie pour les ecoles Primaires
by Gattegno, Caleb
ISBN: 9780878253623
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Educators : Teacher, Caleb Gattegno, Henry P. Caulfield, Jr. , Howard Adelman, Charles Wedem...
by Unknown
ISBN: 9781156452493
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Egyptian Mathematicians : Ptolemy, Diophantus, Caleb Gattegno, Ibn Yunus, Ahmes, Abu Kamil S...
by Unknown
ISBN: 9781156770726
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Science of Education : Reading, the Social and Human Challenge - Part IIA, Chapter 7
by Gattegno, Caleb
ISBN: 9780878251940