Energía solar

GRADES K–2: This Spanish title introduces early elementary students to some of the ways police officers help our communities. EARLY BILINGUAL LITERACY: Help young learners strengthen their bilingual skills—add the English version of this title into your collection, too. WHY COMMUNITY HELPERS: This collection introduces important information with kid-friendly language and engages with vivid photos and real examples. BUILD A LIBRARY: Collect every title from the collection to stock your home or classroom library. Reading together is a great way to bond while fostering communication and a...

GRADES PK–2: This 16-page Spanish title (8'' x 8'') introduces early readers to the spotted hyena: how they find food, interact with social groups, and more! FEATURES: Simple Spanish text and vivid photos present fascinating facts about an amazing African animal. Comprehension questions are included to advance learning. EARLY BILINGUAL LITERACY: Help young learners strengthen their bilingual skills—add the English version of this title into your collection, too. BUILD A LIBRARY: Collect every title from the collection to stock your home or classroom library. Reading together is a great...

Most of the Earth's changes happen over millions of years, but earthquakes can force significant changes to the land in just a few moments. Readers will learn the science of plate tectonics and its role in the development of earthquakes around the globe. They will also learn that not all rocks are created equal. In fact, rocks are all different ages! This Spanish-translated book concludes with images of the damage and destruction that earthquakes can cause.

Esta cuarta edición expone los fundamentos de las señales y sistemas discretos en el tiempo y procesamiento digital de señales. Este texto es adecuado para estudiantes de Ingeniería eléctrica, ingeniería informática y Ciencia de la computación.

Habitat for Humanity has built more than 100,000 houses around the world. Volunteers of all ages help Habitat for Humanity. Young readers will be inspired by the work Habitat does. They may even volunteer to help!

Este libro te enseñará a ponerte en marcha y a conseguir lo que quieras, ya sea más tiempo, más dinero, más salud, más amor, más felicidad o más libertad. Gracias a este libro aprenderás a: visualizar tu futuro y a convertirlo en realidad; conseguir tus