Leyendas prehispánicas mexicanas

Discover how the heart and lungs work together to keep the blood flowing and the body breathing in this book that provides pictures of real hearts and lungs and accompanying diagrams. Readers will learn about circulation and breathing as well as related vocabulary.

Frogs and toads are some of the most confusing amphibians to classify. While some of their physical attributes are easy to tell apart, if we take a deeper look at these animals we find it’s not quite that simple. From poisonous skin and bulging eyes to their amazing life cycles, these creatures are as interesting to study as they are difficult to categorize. Once we break down the difference between “true” frogs and “true” toads, it’s easy to see why so many have trouble telling the two creatures apart!

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 microscope and learn how to fix it. This nonfiction book is paired...

Una Biblia ideal para descubrir en familia la alegría de la fe. Orientada a niños de 3 a 7 años, es de gran ayuda para padres, educadores y catequistas que deseen iniciar en la fe a los más pequeños. Incluye un Cd con 20 canciones infantiles. Presentada por Mons. Francisco Gil Hellín, Arzobisbo de Burgos. Sigue las orientaciones de la Conferencia Episcopal Española, expresadas en el texto Los primeros pasos en la fe.