Montaje mecánico en instalaciones solares fotovoltaicas

A young boy travels to China to learn about the people and culture of one of the world's most powerful nations.

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...

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

¡Descubre los secretos de la ciencia con «Futuros Genios»! ¿Cómo se define el color de nuestro pelo? ¿Qué son los genes? ¿Y las bases nitrogenadas? ¡Acompaña a Valentina en esta fascinante exploración del ADN y conviértete en un genio de la genética! «Futuros Genios» es una colección pensada para compartir un momento de lectura y aprendizaje en familia. A través de ilustraciones sencillas y divertidas, Carlos Pazos, divulgador científico conocido por su blog Mola Saber, explica las nociones básicas de conceptos científicos generales y da respuestas -comprensibles para...