Cómo podemos utilizar la palanca?

This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.

Follows the Thirteen the Amendment that freed the slaves, end of the war, and the death of President Abraham Lincoln.

Define planos inclinados, explica sus funciones, y sugiere experimentos sencillos para demostrar cómo funcionan.

Follows The Thirteenth Amendment That Freed The Slaves, The End Of The War, And The Death Of President Abraham Lincoln.

These biographies introduce young readers to important figures in American history. Ideal for reports and correlated to the social studies curriculum, the series presents a straightforward account of each individual's life and times and describes how each person contributed to the shaping of our nation.

Un clásico exótico, Animales de África nos ofrece un safari de conocimientos sobre los animales de la sabana y de la selva. Al ritmo de África, descubra los animales de diferentes maneras: por su comida, sus gritos o también sus pistas. ¿Listo para explorar? Las estampas interactivas de la colección Caja de cartas estimulan el desarrollo del vocabulario del niño mientras divertirse. Realizado en francés, en inglés y en español, son también una buena manera de iniciarse a otras idiomas, y permiten aprender la buena pronunciación de las palabras con la narración. Al final,...

Learn how to react when you see something wrong or dangerous with this relevant Spanish nonfiction book. Perfect for young readers, the book includes a fiction story related to the topic, a connected civics project, a glossary, useful text features, and engaging sidebars. This 28-page full-color Spanish book explains in an easy-to-understand way that students should talk to a trusted adult about things that make them uncomfortable or scared. It also covers serious subjects such as bullying and “stranger danger”, and includes an extension activity for grade 2. Perfect for the classroom,...

Las 15 B+leccionesB; magistrales que contiene este libro revolucionaron, ya en los anos sesenta, los fundamentos de la pedagogia de la musica. Por entonces, el prestigioso compositor y director de orquesta Leonard Bernstein (1918-1990) presentaba en televi