10 cosas que puedes hacer para ahorrar electricidad

Learn how scientists channel energy from the sun to power awesome innovations! Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual Smithsonian employees working in STEAM fields. Perfect for English language learners, this Spanish book builds 1st grade students’ early literacy skills.

Consolidates the Student's Book lessons with targeted practice, unit by unit Additional practice of reading, writing, speaking, listening and use of English skills Extensive grammar and vocabulary practice Complete practice exam in Unit 10 Designed for independent study at home and practice in class Audio for listening lessons available on the Student's App

A thoughtful discussion of violence in schools, complete with examples of incidents and suggestions for coping.

Rompecabezas filosófico, thriller psicológico, innovadora mezcla de realismo y fantasía, apasionante aventura, éste es un libro que se resiste a ser etiquetado. Explosivo debut literario de Steven Hall, joven autor británico formado como artista visual, la novela se sitúa en la vanguardia más innovadora de las letras inglesas en la actualidad. Tras despertar gran expectación incluso antes de su publicación en inglés �los derechos se vendieron entonces a más de veinte editoriales de todo el mundo—, La memoria del tiburón ha suscitado la respuesta entusiasta de los críticos...