En los juegos del parque (At the Playground)

Readers will be amazed to discover that every time they climb onto bicycles and ride like the wind, they are defying gravity! This book explains the physics and history behind bicycles, skateboards, and surfboards. Readers learn what happens from the simplest movement of rolling forward to more complex tricks and stunts of jumping and spinning. Readers will never look at bikes, skateboards or surfboards the same way again.

Where is your brain exactly? What does it do? Use your brain to read this engaging, Spanish-translated title and learn all about it!

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.

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

A lo largo de mi vida he sido un poco de todo: marchante de arte, predicador en una región minera, profesor de idiomas, vendedor de libros . . . pero, por encima de todo, pitar ha sido mi verdadera pasión. Algunos me conocen como "el loco del pelo rojo" . . . ¿Quieres saber por qué?

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.

Discusses the origins of tomatoes, the many different kinds, their uses in Latin America, their spread throughout the world, and tomato festivals.

La abuela de Kerstin gana un premio estupendo: un crucero por el Caribe. A Kerstin le apetece mucho ir, pero no tiene billete. Sin embargo se las ingenia para colarse en el barco... ¿Qué peripecias esperan a este singular polizón? Una divertida novela en la que se refleja la importancia de la amistad y las relaciones interpersonales.