Leyendas prehispánicas mexicanas

Basic concepts about electricity. Topics include: CA circuits, Serial and parallel circuits, transformers, power distribution and circuit repairs. With questionnaire. Ideal for high-school and college.

Describes the different types of octopuses and how they search for food and defend themselves against predators.

En 'El pastel de chocolate' una merienda en casa de su tía es la excusa perfecta para que los dos protagonistas de la historia descubran la importancia de la vista, el olfato, el gusto, el tacto y el oído (los cinco sentidos) en la vida cotidiana. Tanto las coloridas y detalladas ilustraciones, como las actividades que se proponen al final de cada libro para realizar antes, durante y después de la lectura ayudan a captar la atención del pequeño lector y favorecen la consecución de los objetivos pedagógicos de la colección.

The Internet can be one of the most useful tools for young learners. It can also open them up to dangerous situations and inappropriate content. This book teaches readers how to use the Internet responsibly. It addresses relevant issues, including social networking, online gaming, and cyber bullying. Through age-appropriate text, readers will learn how to avoid strangers and keep their personal information safe. “Tell Me More” boxes give advice for complicated online situations. Color photographs and a detailed glossary support the text. Supplemental websites provide opportunities for...