by R.M. Martín · Editorial Edarca · tapa blanda · ISBN 9788478872701
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«Castillo Cálculo 5A» is the maths exercise book by R.M. Martín, published by Editorial Edarca in paperback (16 pages, in Spanish).
Booklet with maths exercises focused on single-digit multiplication with a higher level of difficulty. The activities are aimed at primary school students to reinforce calculation and numerical reasoning through practices of increasing difficulty.
Belongs to the C.Matemáticas Primaria series; the cover indicates level 5A. Recommended age from 8 years.
For primary school students who need to reinforce single-digit multiplication calculation, as classroom work material.
Richard M. Lerner is professor of Human Development at Tufts University, occupying the Bergstrom Chair in Applied Developmental Science. Also at Tufts, he directs the Institute for Applied Research in Youth Development. He did his undergraduate work at Hunter College, graduating in 1966.
