Duro Blando

Simple text and color photographs show what life is like on a ranch, covering cattle, corrals, roundups, and other topics.

Clues about the turtle's physical characteristics, behavior, and habitat lead the reader to guess what animal is being described.

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

A simple biography of the man who worked to win fairer treatment of the migrant farm workers in California in the 1960s and to establish the United Farm Workers union.

La Semana Trágica, las huelgas, las luchas y la necesidad del sufragio femenino, las políticas de la infancia en una trama social en gestación, las prisiones, los trasfondos multicolor del yrigoyenismo, la epidemia de gripe, los recovecos del arte: todo pasa por Katherine Sophie Dreier, singular y generosa mujer de vanguardia, a través de una lente estadounidense convertida en audaz caleidoscopio, lo que hace de este libro un relato fascinante del viaje que esta singular mujer emprendiera por Argentina entre 1918 y 1919.

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...