El dinero y el comercio en nuestro país: Read-Along eBook

Introduce students to the natural ways that the Earth is constantly changing. This Spanish-translated book includes engaging, primary source documents and images that keep students reading as they build their literacy skills and social studies content knowledge. Informational text features help students navigate the text.

In a sea of future flows much poetic adventure of John Malpartida. It is not a summary but a high point of the spiral, in which gravitation of old and new issues is allied to a decanting of aesthetic expression unabated. This is a poem, as noted in its day Octavio Paz in relation to his first book, in which "the body thinks, thought embodies". On the other hand, it is difficult to separate this poetic work of fiction, and even some of his essays, because it involves the deepening of the same myth (or a set of images, feelings and thoughts) that draw a work: not the face of the author but a...

Have you ever wondered where inventors get some of their ideas? This answer may surprise you: sometimes the inspiration comes from plants! Learn how some tiny plants have made a huge difference in the world.

"Explore the amazing world of rain forest chameleons! Now in Spanish, friendly text teaches readers all about these colorful creatures while vivid photos, critical thinking questions, and a photo glossary teach them the basics of reading nonfiction."

Quizá los trilobites no sean tan espectaculares como los grandes dinosaurios. Sin embargo, estos pequeños seres prehistóricos –los cuales vivieron durante el periodo Cámbrico, es decir hace 542 millones de años–, tienen mucho que decirnos sobre el pasado remoto de la Tierra y sobre los seres vivos en general. Su fascinante anatomía, por ejemplo, guarda curiosas similitudes con otros animales y con un sinfín de objetos de uso común hoy en día. Este ameno libro toma a los trilobites como tema para hablarnos de la biología pero también de ingeniería. Los autores se refieren lo...