Los ciclos de vida de los insectos (Insect Life Cycles)

From the candiru to the lionfish, there are so many kinds of fish on Earth. While all have different methods of production, the basic life cycle is the same, from egg to spawning swimmers. Readers are introduced to this general cycle as well as the important vocabulary needed to talk about it, such as “fry” and “spawning.” Accessible language and simple diagrams throughout the book provide a way for struggling readers to tackle science curriculum content.

Heredero de la gran tradición norteamericana en narrativa de terror, que nace con E.A. Poe y pasa por H.P. Lovecraft, Stephen King ha logrado con sus obras una difusión jamás alcanzada por ningún otro autor en este género, dotándolo de una vitalidad envidiable. Danza Macabra (1981) es un lúcido y divertido ensayo, lleno de referencias a multitud de obras y jugosas anécdotas biográficas, que pretende dar respuesta a la paradoja esencial del aficionado a la ficción de terror: «¿Por qué hay personas dispuestas a pagar a cambio de sentirse extremadamente incómodas?» Y para abordar...

What did people use to buy things before money was invented? Where is money made? Find out in this inviting book that informs readers about coins, paper money, the Federal Reserve, exchange rates, and checking accounts. Featuring a timeline of money's history, detailed photos, stimulating facts, clear, informational text, and a glossary that will assist in improving vocabulary, this Spanish-translated nonfiction title will keep readers engaged from cover to cover.

Se abordan las Matemáticas desde lo experimental, lo estético, lo lúdico, lo cultural y desde la resolución de problemas. Supone un enriquecimiento para alumnos capaces de disfrutar dedicando tiempo para trabajar las Matemáticas, estimulados por la presencia de otros compañeros y de un profesor que guía las sesiones. Puede ofrecerse como materia optativa para estudiantes especialmente interesados por las Matemáticas.

SHAAAARRRKK! That's probably the last word anyone wants to hear while swimming in the warm blue sea. But most sharks aren't at all what people expect. In fact, those who think all sharks are giant, man-eating killers are in for a surprise. The compelling narrative, colorful illustrations, and captivating facts in SURPRISING SHARKS reveal that sharks come in all shapes and sizes - and probably should be more afraid of humans than we are of them. Back matter includes a note about sharks and an index.