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Forces and motion are key concepts in the elementary science curriculum. This Spanish edition of How Simple Machines Work uses simple text and full-color photographs to help ELL students understand the principles behind simple machines. Each volume includes three diagrams to enhance comprehension. The text uses authentic language and is designed to build reading skills as well as knowledge of basic science concepts.

Un libro milenario, una carta de navegación antigua, un reloj para viajar en el tiempo y una misión. Como escenario: el mar, el río, los glaciares y cielos sembrados de estrellas. Anusqui con su reloj mágico, viajará al siglo XI donde conocerá a su nuevo amigo Santiago. Con él y el resto de los personajes, salvarán al mundo de una inminente amenaza. ¿Os cuento un secreto? En medio de esta intrépida aventura, Anusqui conocerá a personajes históricos, se sorprenderá con el inquietante mundo de los hielos y descubrirá el porqué de sus superpoderes.

Young detectives will learn data analysis and probability while they are engaged in reading about crime scene investigations. Used in the classroom or at home, this nonfiction Spanish text includes mathematical charts to help students practice calculations and become more confident in their data analysis skills. With a glossary, an index, dynamic images, age-appropriate content, and easy-to-read text, students will build their math and reading skills while they are engaged in reading high-interest topics.

Introduces the geography, history, religion, government, economy, and culture of one of the poorest countries in the western hemisphere.