• Born date: 1911-11-11
  • Born in: Egypt
  • Death date: 1988-07-28
  • Death in: FrancE
Caleb Gattegno

Caleb Gattegno (1911–1988) Alexandria, Egypt is best known for his innovative approaches to teaching and learning mathematics (Visible & Tangible Math), foreign languages (The Silent Way) and reading (Words in Color). He is also the inventor of pedagogical materials for each of these approaches, and the author of more than 120 books and hundreds of articles largely on the topics of education and human development.

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