Through a wide range of thought-provoking situations, children learn to:- classify and arrange materials,- compare and relate objects,- understand simple spatial and temporal relationships and reproduce shapes,- use arbitrary or conventional units of measurement for counting,- utilize, organize, and expand their knowledge regarding numbers,- recognize and name simple solid and planar shapes,- identify symmetrical shapes along an axis,- perform simple mathematical operations,- solve small problems. In the last pages of the book, ideas are provided for:- games, constructions, personal expression, and creativity. Age: from 4 years old.