El Pacto Del Mayflower /

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

El original de este documento se exhibe al público en los archivos nacionales estadounidenses. La proclama fue ratificada por el congreso continental, el día 4 de Julio de 1776, en Filadelfia, Pensilvania. En ella se asume la renuncia total al dominio británico de las trece colonias inglesas en Norteamérica. Fue escrita, en lo esencial, por Tomás Jefferson. Consta de tres partes principales que integran una cadena de argumentaciones. En la primera sección se introducen ideas generales sobre la independencia. Más adelante se argumenta la tesis sobre la Libertad; los derechos que aquí...

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.

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Introduces readers to mammals and the concept of classes of animals. Simple text describes the common features and behaviors of mammals as well as offering many examples of creatures in this group.

En la corte cordobesa del califa Al-Haken ii se ha producido un terrible suceso: Sudri, el eunuco favorito del califa, ha aparecido muerto.Todos los indicios apuntan a un joven mozárabe, Rodrigo, como único culpable; sin embargo, el médico Hantal Idrissi y su hijo comenzarán una investigación que destapará traiciones, odios y venganzas. Una novela de intrigas enclavada en el ambiente de la Córdoba califal.

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...

Learn multiplication on a fun-filled trip to the supermarket! The displays, shelves, and layout of a local grocery store provide ample opportunities for students to learn multiplication as they are engaged in reading high-interest content. This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. The full-color images, math graphs and charts, and practice problems make learning math easy and fun. The table of contents, glossary, and index will further understanding of math and reading...