Teach kids to count and read at the same time! The Numbers 1-20 series introduces early readers to numbers by paring them with simple sentences. Beautiful photos and graphics tie the written, numeral, and visual forms of each number together. Each book focuses on a different topic kids will love. Help early learners gain reading practice and counting skills while building an interest in numbers. Aligned to Common Core Standards and correlated to state standards. Sandcastle is an imprint of Abdo Publishing.