Big Idea (Book Series)
BIG IDEA is a series of content-area books designed to make Grades 4–6 curriculum topics accessible to English language learners (ELLs) and striving readers. Each book in the series focuses on a single curriculum topic. Concepts are explained clearly through a combination of identifying the “big ideas” and illustrating those ideas visually with photographs, illustrations, diagrams, labels, and supporting text. Hands-on activities provide additional curriculum connections and reinforce concept and skill development.