La energía

El ser humano es la única criatura en la Tierra que ha sido capaz de observar los fenómenos que produce la Naturaleza, analizarlos y sacar provecho de ellos mediante su manipulación. En el momento en que fue capaz de encender y mantener el fuego y de obtener una lanza aguzando el extremo de una rama, nació la tecnología. Esa habilidad inicial le llevó a probar materiales (piedra, hueso, madera, arcilla, etc.) y mejorar continuamente los procedimientos (las técnicas) para procurarse alimento, cobijo y comodidad. Este Atlas viene a ser un atractivo resumen del desarrollo de la...

Las composiciones de Beethoven expresan siempre fuerza y diversidad, por eso resulta complejo resumir su originalidad y personalidad. Beethoven supo plasmar en su música los momentos más notables de su vida, los sentimientos de alegría, de sufrimiento o de amor. La confluencia de los ideales revolucionarios de la época con el carácter, apasionado y profundo, del artista desempeñó sin duda un papel fundamental en la revolución musical que representó su obra.

This nonfiction Spanish book teaches students about the earth’s cycles, and introduces them to important scientific concepts and vocabulary terms like combustion, hydrosphere, biosphere, and fossil fuels. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation. Keep students reading with this fascinating Spanish book.

Sharing is a social skill all children need to learn. This book presents sharing as a positive choice, then describes four ways to share. It points out that sharing goes beyond things: children can also share their knowledge, their creativity, and their time. What if they don't want to share, or someone won't share with them? These topics are covered, too. Concrete examples and reinforcing illustrationshelp children practice sharing, understand how and why to share, and realize the benefits of sharing.

Compare traditional dance costumes from Cuba, Ireland, Japan, and Nigeria as you learn inequalities and how to compare groups and numbers! Beginning readers will enjoy learning basic math concepts with this brightly illustrated Spanish book. Featuring vivid images and easy-to-read text, this full-color book develops students' math and reading skills and introduces them to early STEM themes. The Math Talk section includes questions that will increase understanding of basic math and reading concepts and develop students' speaking and listening skills. Learning math is fun and easy with this...