Qué pasa aquí, abuelo?

El Proyecto Aristóteles es un centro de creación de materiales didácticos en áreas fundamentales de la educación. Este libro es el Tomo I de la Colección de Problemas de Matemáticas para 4º de Primaria, organizada en progresión de dificultad. En él encontrarás 150 problemas de multiplicaciones, divisiones, fracciones, magnitudes, etc., con los que poner a prueba los conocimientos matemáticos de los niños de esta edad.

An award-winning first glimpse into the diverse natural world of mammals. This addition to the acclaimed About... series explains to children in simple, easy-to-understand language what mammals are, what they eat, and where they live. Beautifully detailed, realistic paintings by wildlife illustrator John Sill introduce readers to the huge variety of mammals, from the tiny white-footed deermouse to the large American bison. An afterword provides more details about the animals featured in the book. Parents and pre-school and primary-grade teachers will find this an attractive choice for...

A closer look at the stomach and how it works with the digestive system to give the body the nutrients it needs to stay healthy.

Simple text and photographs describe dragonflies, including their physical characteristics, behavior, and life cycle.