Trayectoria de choque: Los asteroides y la Tierra (Collision Course: Asteroids and Earth)

Young readers will be inspired by this biography about the first woman to fly solo across the Atlantic. The appealing images, helpful text, and supportive timeline, glossary, table of contents, and index combine to create an engaging experience as readers learn about one of the greatest female pilots of all time. This book has been translated into Spanish.

Learn about the process of electing government leaders! This Spanish nonfiction book explains how elections work and ways for individuals to stay involved in government. The book also includes a related fiction piece, a glossary, an extension activity, and other helpful features. Perfect for young readers, this book will show students how to be informed citizens when it comes to elections and campaigns. This 32-page full-color Spanish book describes the presidential election process with examples from United States history. It also explores essential topics such as leadership and civic duty...

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of data organization. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how data organization works in the real world. In this book, a class studies temperature throughout the course of a winter. This nonfiction book is paired...

La vigilancia epidemiológica consiste en la recopilación de información relevante y necesaria sobre algunas condiciones de salud de la población. Su análisis e interpretación proporciona bases para la toma de decisiones. En este libro hablaremos de la vigilancia epidemiológica en salud bucodental, ya que es importante llevarla a cabo para detectar factores de riesgo y diseñar actividades de intervención sanitaria. Tema 1. Demografía y estadística aplicadas a la higiene bucodental Tema 2. Epidemiología básica general y aplicada a la higiene bucodental Tema 3. Economía sanitaria...