Boost students' nonfiction skills and their vocabularies with these super-engaging readers. Fascinating facts and eye-popping photos ensure students stay intrigued to promote fun learning. The books include a table of contents, short chapters, diagrams, captions, glossary, comprehension questions and more. Sturdy storage unit conveniently holds and organizes books. Teaching guide allows you to create a more comprehensive teaching experience. Books are designed for first-graders and second-graders.