Círculos matemáticos

Discusses the natural process of decay in nature's life cycle, as well as how we can speed along the cycle of decay for man-made products.

Una antología de lecturas con un hilo conductor:los regalos de cumpleaños que recibe un niño.La lectura se convierte así en el mejor regalo que se puede dar y recibir.

Finally, a beginning science book that really addresses the needs and interests of the very young child. Since we all eat, we all must poop. It is this basic message that this wonderful book presents in a form that is both humorous and informative.

Do you know the important skills it takes to survive in the jungle? Learn about them in this useful, Spanish-translated nonfiction title. With helpful diagrams, vital tips and instructions, vivid images, and a glossary of useful terms, this title will have readers feeling aware and prepared!