La vida con los otros

What do solar panels, waterproof clothing, and window coverings have in common? They are technologies that have been adapted based on studying butterflies! Learn what scientists have learned from butterflies with this Spanish book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, this STEAM book features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual...

Winning the American Revolution was just the first step. After defeating Great Britain, the American colonies were united in name only. How would this independent nation be governed? During the summer of 1787, representatives went to Philadelphia to solve the problem. The result, the U.S. Constitution, created a new government, establishing the foundations of a free nation and setting a new course for history.

Kids often play with magnets, yet they don't learn how these playthings work for many years. Practical knowledge from their play can help them learn more about magnetism, and so can this book. Specially written for those with reading challenges or readers looking for a review, the main text covers important vocabulary, magnetic fields, and a discussion of why metals and magnets come together. Diagrams and succinct fact boxes offer additional ways to learn each concept and explain some ideas in greater detail.

Con La musculación racional el lector será capaz de planificar un entrenamiento de fuerza adecuado y seguro. El libro, que se divide en dos partes, introduce en la primera los conceptos clave para el entrenamiento de la fuerza y en la segunda se desarrolla, paso a paso, la puesta en práctica del entrenamiento con series de ejercicios para los niveles de iniciación, intermedio y avanzado. También se trata el entrenamiento de contra resistencia en niños, adolescentes, mujeres y personas mayores. Esta obra es la recopilación de los conocimientos teóricos que se han utilizado a lo largo...