From Alexander Graham Bell to Steve Jobs, creative thinkers have revolutionized the way we communicate. Come aboard a young inventor's time machine as he explores the history of the telephone, one fraction at a time!

This Spanish math reader integrates math and literacy skills, and provides real-world examples of problem-solving and rich tasks that promote reasoning and critical thinking as students explore math in meaningful ways.

• Full-color images and mathematical charts and diagrams help develop students' math and reading skills.
• The DOK-leveled Math Talk section includes questions that facilitate mathematical discourse and higher-order thinking skills with questions that students can respond to at school or home.
• Let's Explore Math sidebars and the extensive Problem Solving section provides numerous opportunities for students to practice what they have learned.
• Text features such as a glossary, index, captions, and a table of contents increase understanding and build critical literacy skills.