Cruzar un continente

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

Make patterns fun at recess time! This exciting title has been translated into Spanish and helps young readers recognize repeating patterns all around through helpful charts and familiar images of recess time. Children will better understand early STEM themes through the help of simple, applicable examples of patterns. This title will engage young readers with games and featured "You Try It!" problems!

Learn how a designer's sketch becomes the fashion we wear and how a designer uses math and geometry to make their designs successful in this fashion-filled book! Including information about the fashion industry, clothing fabrics, patterns, and textures, readers learn all about the different aspects of the fashion industry. With a glossary, index, vivid images, informational text, and interesting facts, this Spanish-translated nonfiction book with engage students from beginning to end.

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!

Color photos and easy-to-read text five a realistic insight into the typical working day of an on-the-job zookeeper.

René Voillaume fue el fundador, bajo la inspiración del testamento espiritual del hermano Carlos de Foucauld, de los Hermanitos de Jesús y de los Hermanitos y Hermanitas del Evangelio, presentes en todo el mundo. Fue también impulsor de varias asociaciones y movimientos sacerdotales y de laicos. La vida de sus Fraternidades, centrada en la pobreza, la obediencia y la ayuda a los más necesitados, constituye un ejemplo de vida cristiana que sigue entusiasmando a muchas personas. En el corazón de las masas contiene una colección de cartas y conferencias que expresan la base de la...