Los ciclos de vida de los peces (Fish Life Cycles)

Many insects hatch from eggs and molt several times as they grow bigger. Others, such as butterflies, undergo a complete metamorphosis. A common science curriculum topic, insect life cycles may be confusing because of these differences. However, this book breaks down these cycles into easy-to-understand steps in both accessible language and colorful diagrams readers can turn to for review again and again. The most important vocabulary needed to talk about insect life cycles is further explained in fact boxes and an extended glossary.

Earthquakes can leave people and property in bad shape. At times, they can be deadly. Find out about the science of studying earthquakes and the men and women who track the movements of the ground below us. Created in collaboration with the Smithsonian Institution, this Spanish book ignites a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides English language learners through every step of the engineering design process. Inspire students to pursue a STEAM career with career advice from a real person working in a STEAM field. Discover...

The ruthless explorer Cortés devastated an entire people in his search for fame and gold for himself and for his country. Witness the conquering of the Aztec Empire during the Age of Discovery.

Para un aprendizaje progresivo del frances en un curso de 60 a 80 horas. En un mismo volumen el alumno tendra el Libro del alumno y el Cuaderno de ejercicios ademas de los CD audios. El libro contiene 6 unidades con actividades en contexto, vocabulario, gramatica, informacion sociocultural, un memento gramatical y una preparacion al DELF. Nivel A2

Un libro para comenzar a pensar en algunas de las preguntas cruciales que nos acompañarán toda la vida. Algunos piensan que la vida es un juego, otros opinan que es muy complicada... No hay una única respuesta para las grandes preguntas de la vida. No existe sólo una forma de pensar. Cada quien debe construir, buscar, construir la suya propia. Doce ideas sobre el sentido de nuestra vida se confrontan en este libro.