10 cosas que puedes hacer para ahorrar electricidad

Ricardo the pack rat has collected so much stuff that his rat hole is full. Includes facts about pack rats.

Un proyecto que incluye los contenidos curriculares de las distintas comunidades autónomas. Las unidades se desarrollan con un enfoque práctico, de forma que permite un trabajo autónomo por parte de los alumnos , aunque no se descuidan todos los aspectos teóricos de la materia, lo que resulta muy útil para usuarios no especialistas. El libro atiende tanto a los usuarios de software propietario como a los de software libre ; todos ellos tienen múltiples actividades para desarrollar.

Take a virtual tour of the Smithsonian! With this Spanish book, you’ll spend a day in the life of a bird keeper and learn how they are “hatching” new plans to help endangered birds. English language learners will read about how an egg hatches, the incubation period, and bird species such as the Kiwi, the emperor penguin, and the Guam rail. Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students...

This engaging volume takes a close look at the legend of Joaquin Murrieta, the man who came to be known as the Robin Hood of Eldorado. Dynamic text tells the story of Murrieta, with plenty of exciting age-appropriate details, but also examines the complex relationship between fact and fiction in legends such as his. Interesting and informative historical background on the California Gold Rush and the role of Mexicans and Californios in the area at the time round out this fun and informative volume.