La naturaleza de la materia (The Nature of Matter)

In this biographical book, young readers will learn about the brave life of Harriet Tubman. Readers will discover how Tubman bravely escaped from her life as a slave to cross the Mason-Dixon line into freedom and how she helped hundreds of other slaves into freedom through the Underground Railroad with the help of abolitionists. The vivid images, stunning facts, and supportive text work in conjunction with the helpful glossary, index, and timeline of Tubman's life to give readers an engaging experience as they move from cover to cover. This book has been translated into Spanish.

Read Along or Enhanced eBook: Discover the world of mammals in this delightful nonfiction title! Readers will learn all about different mammals--from primates to marsupials, and rabbits to whales, even omnivores and herbivores. Featuring vivid photos and charts, clear text, and stimulating facts, this Spanish-translated book will have children eager to learn all they can about mammals!

Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.

This unique collection of children's games and songs is an exuberant expression of Colombian culture. The author includes a musical score for each piece, and provides a brief description of its rhythmic and melodic elements. Text copyright 2004 Lectorum Publications, Inc.

En esta historia un niño decide vomitar para no crecer; supone que si no se desarrolla no tendrá que enfrentar la nueva situación familiar. La atención especializada y cuidar de su mascota, una serpiente pitón, le enseñarán que los cambios físicos son necesarios para que todo vaya bien en la vida.

¿Sabías que los insectos palo se llaman ninfas cuando son jóvenes? Las ninfas cambian la piel cuando crecen. Aprende más datos fascinantes en Los insectos palo, uno de los libros de Insectos Fascinantes. Did you know that stick insects are called nymphs when they are young? Nymphs shed their skin as they grow. Learn more fascinating facts in Stick Insects, a Fascinating Insects book.

Los Cuadernos Everest de Matemáticas son un excelente apoyo para trabajar los contenidos abordados en el área de matemáticas.