Héroes y heroínas: un mundo de pasiones

Black holes are neither holes nor black. They're invisible and packed with matter! Future astronomers will find out many more fascinating facts about these space phenomena with this intriguing book. Carefully crafted text encapsulates the most important information about black holes, such as how scientists locate them and their significance in a star's life cycle. Amazing photographs support critical concepts and inspire a true appreciation of the spectacles of space.

Teach students about trading and buying goods and services. In this Spanish-translated book, readers will learn about supply and demand, and learn the difference between wants and needs. Featuring images that support the informational text, students will build social studies content-area literacy and reading skills.

When her mother was worn out from caring for her five sisters, her father gave her lessons in brushwork and color. When polio kept her bedridden for nine months, drawing saved her from boredom. When a bus accident left her in unimaginable agony, her paintings expressed her pain and depression - and eventually, her joys and her loves. Over and over again, Frida Kahlo turned the challenges of her life into art. Now Jonah Winter and Ana Juan have drawn on both the art and the life to create a playful, insightful tribute to one of the twentieth century's most influential artists. Viva Frida!

Este libro está diseñado para ayudar a los padres a vacunar a sus hijos contra los matones y otras personas abusivas. Si te preparas para ellos de antemano, puedes inocularse eficazmente tú mismo contra lo peor de su comportamiento. La técnica y las herramientas que se enseñan en el libro se basan en el condicionamiento operante. En otras palabras, te enseñaré cómo entrenar a tu agresor para que te deje en paz. Y sí, realmente funciona. En el libro te enseñaré lo siguiente: •Por qué los matones intimidan y qué es lo que los motiva. •Cómo detener la intimidación utilizando...