Cómo podemos utilizar el tornillo?

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

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

El Mayflower es un barco que ha llegado a ser célebre en la historia de los Estados Unidos porque en 1620 transportó desde Inglaterra al grupo conocido como "los peregrinos", quienes serían los primeros colonos europeos en establecerse en Norteamérica. Ellos zarparon desde el puerto inglés de Southampton y bautizaron como Nueva Inglaterra a la tierra que los acogió. Como señala este libro, el Pacto del Mayflower designa el acuerdo que los hombres adultos de esta comunidad firmaron a bordo del barco para fijar criterios generales que sirvieran como fundamento para el gobierno de la...

For use in schools and libraries only. Offers a biography of the African American woman who overcame crippling polio as a child to become the first woman to win three gold medals in track in a single Olympics.

Inspirado en el bestseller #1 del New York Times Ella persistió / She Persisted de Chelsea Clinton y Alexandra Boiger, llega ahora esta serie en Chapter Books sobre mujeres que sobresalieron, lucharon y se levantaron contra viento y marea, como Malala Yousafzai. Durante su niñez en Pakistán, Malala Yousafzai tuvo que luchar contra muchos obstáculos para poder acceder a una educación. Después de ser atacada por el hecho de pelear por ese derecho, Malala llevó su lucha al escenario mundial, exigiendo el derecho a la educación para todas las niñas, en todas partes del mundo. Su...

Take a trip around the world and learn about the Earth’s different climate zones! Students will learn the difference between climate and weather, and study the characteristics of low-latitude, mid-latitude, and high-latitude climates. This nonfiction Spanish book teaches students important scientific concepts and vocabulary terms as they learn about tropical rainforests, savannas, deserts, grasslands, taiga forests, deciduous forests, and tundra. The colorful images, diagrams, sidebars, and text features will keep students connected to the text. Aligned to state and national standards, the...

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. Students will learn about Alta California by examining the maps, letters, images, photographs, and art that emerged during the Mexican rule of California. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at their...