Barcelona XXI siglos

Farmers use tractors to plow their fields. Tractors are also used on construction sites. The biggest tractors are as wide as a road. Learn more about these machines in Tractors, an AV2 media enhanced book

Trabajadores que me cuidan (Workers Who Take Care of Me) builds critical literacy skills with this exciting Spanish-translated nonfiction reader. Engage students with fascinating content that will keep them enthralled from the first page to the last. Focusing on different types of workers, children will be introduced to all the people who work hard to take care of us. This informational text features simple phrases, exact text-to-image relationships, vivid photographs, and large font to encourage students to examine different professions, including doctors, police officers, and firefighters....

Partiendo de una afirmación común es las ciencias (humanas y biológicas), el individuo tiene una estructura que pone en juego y moviliza la energía. Esta estructura está constituida por las palancas, las articulaciones y los músculos; pero sólo los músculos son los elementos sobre los cuales puede actuar directamente el entrenamiento. Cuando el músculo funciona produce la fuerza, que depende de su estiramiento. El libro, Los métodos modernos de musculación, se presenta divido en dos partes. La primera, que incluye las bases teóricas, trata: Los mecanismos de la fuerza -factores...

In this bilingual picture book, astronaut José M. Hernández recounts his childhood as the son of Mexican migrant workers and his life-long dream to travel to the stars.