Matecracks 7 Años: Para Ser Un Buen Matemático

Esta es la historia de Bart, el niño que soñó con las Súper-Ratas, un ejército de roedores entrenados para mejorar la vida de las personas. Pero lo que nadie esperaba es que ayudaría a salvar la vida de miles de personas. Gracias a su olfato, las ratas de Bart detectan minas terrestres por toda África y ayudan a la investigación de enfermedades como la tuberculosis. Con su amor por los animales, su creatividad y perseverancia, Bart ha contribuido a crear un mundo mejor. La historia de Bart Weetjens es la de alguien que, desde muy joven, se dio cuenta de que había cosas a su alrededor ...

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

Explores The First Settlements That Were Formed In America, Discussing The Explorers That Made Them Possible And The Reasons For The Colonization.

Spanish Language Discover Series Books for Babies & Toddlers: Heavy Equipment Get ready for some rough and tumble trucks! In this Discover Series title, 28 tractors, excavators, forklifts and more are featured in big, colorful photographs on white backgrounds. Each page features a photograph of the truck with a simple title beneath. Used as a jumpstart for interaction, Discover Series Picture Books are a great way to introduce new images, words, and concepts to kids. In this Xist Kids Spanish Edition, Spanish text brings the story to new audiences. This book is in Spanish only. There is no...