¿Por qué hibernan los animales? (Why Animals Hibernate)

Encourages active observation of works of art to discover all the details and to consider the different meanings that may be found in any one image, using as an example a modern painting called "Proyección simétrica" by Alberto Colleoni.- Anima a una observación activa de obras de arte para descubrir todos las detalles y para considerar los significados diferentes que pueden ser encontrados en una imagen, usando el ejemplo de un cuadro llamado "Proyección simétrica" por Alberto Colleoni

Until just over 150 years ago, northern Mexico extended thousands of kilometers farther than its current border with the United States. Many different indigenous groups flourished in that region before the Conquistadors arrived. What we know about their lives and customs is the result of archeological discoveries and the chronicles of the first Spanish priests and soldiers that had contact with them.

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of debugging. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how debugging works in the real world. In this book, readers will investigate what's wrong with a circuit and find out how to fix the problem. This nonfiction book is ...

Tres pequeños libros con solapas gigantes para jugar a adivinar qué animal se esconde detrás de cada solapa. El texto rimado y el dibujo de cada página les darán una pista y cuando abran la solapa, el animal les dirá si lo han adivinado.