Salvar a las aves migratorias

"Roberto has to watch his family's sheep, but he finds it boring. He tries to get what he wants by crying wolf. But what happens when there is real danger?"--

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. This primary source book focuses on the history of California’s Native American tribes: the Tongva, Yokuts, Yana, and Yahi. 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 grade level. Packed with...

Adrián Paenza presenta un nuevo libro con desafíos atrapantes y entretenidos dedicado a sus lectores más jóvenes, porque para la Matemática no hay edad.

Essays by well-known climbers accompany a range of superb color landscape photographs that echo the great traditions of the Ansel Adams and the Sierra Club large format books of the 1970s.

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

Jorge y María son dos adolescentes como tantos otros: salen con sus amigos, se comunican con ellos en las redes sociales, se enamoran... Todo esto sería normal si las madres de María y Jorge no fueran tan famosas. Los dos chicos se ven envueltos en una espiral de rumores de la que solo salen recordando que las palabras que elegimos para contar nuestra historia son las que realmente dan forma a nuestro mundo.