Sor Juana Inés de la Cruz

Find out how tools have helped people hunt, build, and make life easier in this engaging, Spanish-translated nonfiction title. With colorful images, timelines, charts, a glossary to assist with vocabulary improvement, and an index, children will learn how tools throughout time have made such an important impact on life as we know it! Featured eras include the Stone Age and the Industrial Revolution.

As they say, necessity is the mother of invention, and this book introduces readers to 14 women who invented very useful, helpful items. They include Chicago native Margaret Wilcox who invented the car heater, Indiana native Marion O'Brien Donovan who invented disposable diapers, Pennsylvania native Stephanie Kwolek who invented Kevlar, and Austria-born actress Hedy Lamar whose secret communications systems led to the creation of WiFi, Bluetooth, and GPS.

This starter volume uses everyday examples such as a baseball and a beach ball to demonstrate the contrast between hard and soft objects.

Entra en el mundo de uno de los gatos más interesantes de la selva tropical. Este texto incluye fotos vívidas de jaguares que rondan por el suelo del bosque. Las preguntas de pensamiento crítico y un glosario de fotos proporcionan a los lectores los elementos básicos para la lectura de no ficción. Enter the world of one of the coolest cats in the rain forest. Now in Spanish, this carefully leveled text includes vivid photos of jaguars prowling the forest floor. Critical thinking questions and a photo glossary supply readers with the basic building blocks for reading nonfiction.