¿Cómo se cultivan los alimentos?

Este libro interactivo desvela cómo se suceden el día y la noche en la Tierra. Todas las curiosidades de este proceso son analizadas en este libro que contiene ruedas que giran, ventanas que se abren y solapas que se despliegan.

Life without Principle se llamó originalmente What Shall it Profit, y fue una conferencia dictada por Thoreau el 6 de diciembre de 1854 en el Hall del Ferrocarril de Rhode Island. Posteriormente, dictó la conferencia cuatro veces más en Massachusetts durante 1855, y una vez más en Nueva Jersey al año siguiente. La versión que tradujimos fue editada por el mismo Thoreau para su publicación en formato impreso, que realizó Atlantic Monthly en 1863, donde recibió su título actual.

Learn all about the amazing things your brain does and how to keep it healthy and strong! Readers will discover the anatomy of the brain including neurons, the cerebellum, and the nervous system. Using vibrant images and informational text in conjunction with supportive diagrams, this Spanish-translated nonfiction title encourages readers to learn all about (and use) their brains.

Most of the Earth's changes happen over millions of years, but earthquakes can force significant changes to the land in just a few moments. Readers will learn the science of plate tectonics and its role in the development of earthquakes around the globe. They will also learn that not all rocks are created equal. In fact, rocks are all different ages! This Spanish-translated book concludes with images of the damage and destruction that earthquakes can cause.

Students will develop their math skills while engaged in reading about a busy day in the life of a professional photographer. This nonfiction Spanish math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, intriguing sidebars, practice problems, and math diagrams make learning place value relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and reading concepts. An in-depth problem-solving section provides additional learning and practice...