Calentamiento global (Global Warming)

Introduce students to the structure of the United States government. With this nonfiction Spanish-translated resource, readers will learn about the three branches of government, and the purpose of this separation of powers. Primary source images and supporting text engage readers and help them better understand the content.

Teach students about trading and buying goods and services. In this Spanish-translated book, readers will learn about supply and demand, and learn the difference between wants and needs. Featuring images that support the informational text, students will build social studies content-area literacy and reading skills.

Explains, in simple terms, the reasons for skin color, how it is determined by heredity, and how various environmental factors affect it.

Una historia sobre guerreros del pasado a los pies de una montaña. La segunda muestra a unos alpinistas del presente tratando de coronarla y, en la cima, alguien misterioso... La pieza que une ambas historias, las páginas centrales de esta obra, las escribirá el lector; solo él tiene la clave. Una estupenda manera de incentivar la creatividad y la imaginación.

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...

Los niños aprenden sobre la metamorfosis de la oruga a la mariposa en todas las aulas del mundo, empezando en los primeros grados. ¡Pero nunca la han visto así! Con ilustraciones bellas y coloridas y un texto simple de comprender, este libro cautiva a los niños con su descripción del proceso: de una oruga pequeñita, a una crisálida rara y torpe hasta la mariposa hermosa. Este libro de nivel 1 en español les da a los niños una mirada encantadora de esta belleza natural.