Cómo funcionan los ecosistemas

Each year, Martin Luther King Jr. Day serves as a reminder of the life and work of one of America's greatest civil rights activists. In this informative book, readers will learn about the importance of the civil rights movement and why we celebrate Martin Luther King Jr. Day. Full-color photographs accompany the text. This essential book features accessible language that is ideal for children in the early stages of learning to read.

Learning Responsibility At Home And In School Are Addressed In This Book. How It Makes You Feel Better About Yourself If You Are Responsible And Do The Right Thing And How Other People Notice Too. Complete K-5 Social Skills Collection. Paired With A Fiction Social Skills Title.

Los ríos son capaces de encumbrar o arruinar civilizaciones enteras, dividir culturas o unirlas, y proporcionan pistas decisivas sobre el origen del ser humano. Sumérgete en la apasionante historia de Egipto a través del NILO, conoce a los príncipes bandoleros del RIN, asómbrate con la rica diversidad del AMAZONAS o con las sagradas aguas del GANGES. Descubre qué secreto se esconde en el fondo del río AWASH, cómo el ZAMBEZE cambió África para siempre o por qué casi cualquier canción de éxito se remonta al MISISIPI. Averigua el papel crucial del TÁMESIS, el YANTSÉ y el TIGRIS y...

Thomas Jefferson was a great American who helped the United States win its freedom from England. Jefferson helped write the Declaration of Independence, later went on to become the third president of the United States, and is now featured on famous Mount Rushmore! Readers will enjoy this biography that has been translated into Spanish and includes details of Jefferson's time as a lawyer, his membership in the House of Burgesses, and his role as Secretary of State. The vivid images and supportive text combine with the helpful glossary and index to provide readers with tools for better...