¿Qué significa ser programador? (What's It Really Like to Be a Coder?)

If it were possible to shrink down and take a tour of a human body, would you want to go? Readers will get that chance when they explore the body of a guy named Marty, who will let them check out the body systems that keep his heart beating and his body moving every day. With the help of a tiny ship that goes through his ears and all the way through his digestive system, readers will learn exactly what they are made of with this great book.

We use machines every day, but most of us don't understand how they work. When they break down, most of us have no idea how to fix them. Mechanics are the masters of machines. Readers learn that mechanics work on vehicles, including cars, boats, and buses. They use special tools to take them apart and fix what's wrong, and they use their experience and technology to diagnose problems. They often work long hours, sometimes in bad weather, to get us where we need to go. Your readers will see that mechanics keep our world moving and growing.

Sentir y Pensar. Programa de actividades para desarrollar la educación emocional en la escuela. Incluye Guía para las familias.

Para jóvenes lectores que además ejercen de espías, detectives, conspiradores y aventureros, este libro presenta todo tipo de sistemas, de lenguajes y de ingenios para crear y ocultar mensajes secretos. Desde las órdenes cifradas de Julio César, hasta el extraño mensaje en clave que escribió el hombre de la máscara de hierro, el código que utilizó Sherlock Holmes o la fabricación de tinta invisible, con ejercicios prácticos y un diploma acreditativo.

Look up at the night sky. What do you see? This Spanish nonfiction reader introduces students to the subject of scientific observation, and teaches students about the things we use to observe and learn about the world around us. Aligned to state and national standards, the book contains easy-to-read text and nonfiction text features like an index, a glossary, captions, bold font, and detailed images to keep students connected to the text. A hands-on science experiment helps students apply what they have learned and develops critical thinking skills.

Cuando Charles Darwin tuvo la valentía de embarcarse en el Beagle para dar la vuelta al mundo, sabía que esa odisea cambiaría su vida; pero no que su trabajo transformaría el panorama científico de su tiempo. En cooperación con la tripulación del barco, aquel viaje fue un camino de superación personal y profesional que le llevó, a su vuelta, a presentar con autonomía sus novedosas teorías acerca de la evolución, a pesar de la oposición que le esperaba.