50 Adivinanzas Para Razonar Bien

This colorful notebook offers children a series of fun and varied exercises and games to develop their logical reasoning skills.

Various exercises and games designed to practice mental calculation for children between seven and nine years old.

Learn more about the renowned British scientist, professor, and author who spent his entire career trying to answer the question: "Where did the universe come from?" Stephen Hawking was born exactly three hundred years after the death of the scientist Galileo, so maybe it was written in the stars that he would become a famous scientist in his own right. Although he was diagnosed with a neurological disease at age 21, Stephen did not let the illness define his life. Known for his groundbreaking work in physics, and identified by his wheelchair and computerized voice system, Stephen continued...

Presents a line-by-line explanation of the entire United States Constitution, in English and Spanish. Provides a Spanish translation of the Constitution, historical context and student exercises that approximate the decisions made by the Constitution's authors. Written at the fifth grade level.

How many hockey sticks are there? How many hockey players? Early readers will learn to count cardinal numbers with this Spanish book for kids. With bright images and simple text, this full-color book develops students' math and reading skills. The Math Talk questions build fluency and comprehension of basic math concepts. Perfect for shared or guided reading, this nonfiction kids book is ideal for kindergarten and ages 4-6.

Bienvenido a Dinosaurium. Nuestro museo está abierto a todas horas. Sus salas albergan una extraordinaria colección de criaturas del Mesozoico, desde el pequeño troodón hasta el gigantesco braquiosaurio. Aprende cómo evolucionaron los dinosaurios y por qué unos tenían plumas y otros, escamas. Entra y explora el reino de los dinosaurios en todo su esplendor.