Por qué algunos animales tejen telarañas (Why Animals Live in Webs)

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Teach students about trading and buying goods and services. In this Spanish-translated book, readers will learn about supply and demand, and learn the difference between wants and needs. Featuring images that support the informational text, students will build social studies content-area literacy and reading skills.

Presented in a large-size picture book format, this is the story of the Mars Rover Curiosity. It explains how it was built at the Jet Propulsion Laboratory in California, how it got its name, how it got to Mars, and what its mission hoped to accomplish. A timeline about the history of Mars exploration is provided at the end.

What does it take to run a successful lemonade stand? Join Juan and Rose as they develop the financial literacy skills that are necessary to start and run a business! This Spanish math book seamlessly integrates the teaching of math and reading, and uses real-world examples to teach math concepts. Text features include images, a glossary, an index, captions, and a table of contents to build students' vocabulary and reading comprehension skills as they interact with the fiction text. The rigorous practice problems, sidebars, and math diagrams extend the learning experience and provide multiple ...