Young mathematicians at work - Fosnot, Catherine Twomey; Dolk, Maarten Ludovicus Antonius Marie 1952- (Portsmouth, N.H. : Heinemann, 2001)
Contenido: v.1. Constructing number sense, addition, and subtraction--v.2. Constructing multiplication and division--v.3. Constructing fractions, decimals, and percents
Keywords: MATEMATICAS; ESTUDIO Y ENSEÑANZA; EDUCACION PRIMARIA