You don't need to be a math teacher to understand and use averages. Farmers look at the rainfall average to figure out the best times to plant crops. Scientists perform experiments several times and calculate the average to see if their results are accurate. Learn about averages with this full-color informational text that is packed with fun facts, fascinating sidebars, and high-interest content. Featuring TIME© content and images, this full-color nonfiction book has text features such as a glossary, an index, and a table of contents to engage students in reading as they build their comprehension, vocabulary, and reading skills. The Reader's Guide and extended Try It! activity increase understanding of the material, and develop higher-order thinking. Check It Out! offers print and online resources for additional reading. Keep students reading from cover to cover with this captivating text!