Exploring Algebraic Thinking Set

This series takes complex mathematical concepts and makes them fun to explore. This set of 4 books is suitable for reading levels 2.8?4.7 and interest levels 16 and includes 4 nonfiction readers. These nonfiction readers feature high-interest nonfiction text, problem-solving activity, supporting graphics, highlighted content-area vocabulary, sidebars, photographs, graphs, glossary, and index. Titles include Wildlife Scientists, At Risk!, Eco-Predictions, and Animal Investigations. 32 pages each.