Experimentos sencillos sobre el tiempo

Simple text and photographs introduce the purpose of money, how old coins and paper money are disposed of, and how new money is made.

Take a tour of the world's most fascinating landmarks! The Gateway Arch, Big Ben, the Pyramids of Giza, and the Sydney Opera House are just a few of the landmarks that students will learn about in this high-interest book. This nonfiction math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, engaging sidebars, practice problems, and math diagrams make learning arithmetic concepts relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and...

Through bright images, charts and graphs, and Spanish-translated informational text, this book provides readers with enlightening facts about what it takes to work in this exciting and unique profession. Featuring a glossary of terms, an index, a list of helpful websites, and an interview with a real-life deep sea fisher, this text will engage children from cover to cover!

Un libro completo sobre el cuerpo humano donde se explica, de manera gráfica y detallada, cómo funciona esa maravillosa máquina que es el cuerpo humano y la complejidad de la mente. Una práctica herramienta para llegar a una mayor comprensión sobre las motivaciones de los actos.