Cómo funcionan los juguetes (How Toys Work)

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

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.

Read Along or Enhanced eBook: Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies!

How do architects and contractors use math and geometry to help build a house? Readers will find out in this engaging, Spanish-translated nonfiction book that features bright images and charts, informational text, and intriguing facts that will familiarize children with construction, construction equipment and materials, and blueprints. This 6-Pack includes six copies of this title and a lesson plan.

Las redes sociales hoy son parte normal de la vida, en especial durante la adolescencia, y los teens y no tan teens que viven sumergidos en este mundo necesitan ayuda para aprender a navegarlas. Esta es una guía con excelentes consejos para ayudarles a hacerlo con inteligencia para proteger sus mentes y corazones ya que un gran número de situaciones “en redes” pueden enredarlos y poner en riesgo su integridad emocional, social, espiritual e incluso física.

Bitácora es un nuevo curso de español basado en el Marco común europeo de referencia y en el Plan curricular del Instituto Cervantes. El manual propone unidades construidas a partir de documentos variados y estructuradas en torno a tareas de aprendizaje y tareas de comunicación. El léxico cobra un protagonismo especial y se integran coherentemente las nuevas teconologías.

Addresses questions kids often wonder about, where there is usually no simple answer, offering different theories and opinions with examples and comparisons.

El misterioso lobo aguza su olfato y campea las elegantes cimas nevadas de los dosmiles más altos de La Rioja y Burgos. Cuando las ventiscas que dieron origen a evocadores circos glaciares se hacen insufribles, penetra en profundos barrancos cubiertos de altivos hayedos. Mientras se esconden los ciervos, saltan salvajes las cascadas que usaron mineros y ferreros, allí donde calmaban la sed merinas y pastores antes de ir a las lejanas tierras del sur. Mil rincones de ensueño aguardan la visita del caminante que aquí viene a gozar de la Naturaleza.