La historia de los sistemas numéricos: Valor posicional (The History of Number Systems: Place Value)

The moon people, Kaluma, Aluma, and others use a cloud bridge to travel to the Earth, a messy but beautiful world of incredible variety that becomes their new home.

Viajaremos, continente por continente, para conocer los animales más fascinantes que habitan nuestro planeta. Descubriremos las criaturas más feroces de la sabana africana, los bichos más exóticos de las selvas de América, las fieras que habitan el continente asiático, los animales más misteriosos y sorprendentes del fondo marino y... ¡muchísimo más! Mi primer atlas de animales es un libro indispensable para consultar en casa o en la escuela y convertirte en un especialista de la fauna de nuestro planeta. ¡Un atlas bestial!

Young children are natural problem-solvers and always looking for answers, especially when it involves interesting animals. This Spanish-language edition of Fast and Flightless provides young curious readers with striking visual clues and simply written hints. Using the photos and text, readers rely on visual literacy skills, reading, and reasoning as they solve the animal mystery. Clearly written facts give readers a deeper understanding of how the animal lives. Additional text features, including a glossary and an index, help students locate information and learn new words.

From hermit crabs that make a home out of anything they can find to tiny termites that build tall towers, animals of all kinds are architects! In this engaging, Spanish-translated nonfiction title, elementary children will learn about these amazing animal architects and the things they build for habitation and camouflage through vivid images, stimulating facts, informational text, a helpful glossary, and a reference list of useful websites. This 6-Pack includes six copies of this title and a lesson plan.