Obedecer las reglas

Summarizes how water changes from a solid to a liquid and back again, and introduces related facts such as that water freezes at thirty-two degrees Fahrenheit and that ice floats.

¿Qué significa migrar? Descubra qué animales migran y por qué migran a través de fotografías detalladas y texto simple. What does it mean to migrate? Discover which animals migrate and why they migrate through detailed photographs and simple text.

Una antología de lecturas con un hilo conductor:los regalos de cumpleaños que recibe un niño.La lectura se convierte así en el mejor regalo que se puede dar y recibir.

This upper-level text, perfect for art and culture courses, introduces students to the customs and history of Spain. This volume features a wide variety of readings, cultural activities, and 600 questions about the history, literature, art, and traditions of Spain, as well as a CD-ROM of interactive activities.

Young readers will learn the ways that César Chávez fought to protect the rights and lives of migrant workers in this inspiring Spanish-translated biography that gives history behind protests and developments of unions that Chávez led. Vivid images and an interesting timeline of Chávez's life work in conjunction with supportive text and a helpful glossary, table of contents, and index to engage readers from cover to cover.

Learn about the rich history of Mission San Luis Rey de Francia: how it started, the people who ran it, the indigenous population, and its legacy today.