Build math, science and reading skills with this book set that supports STEM education. Fourth-grade students will develop their reading skills while reading high-interest content including 3D printing, how circuits work, story of fossil fuels, extreme sports parts, scientific method and more. Nonfiction books use real-life examples of problem-solving to teach students essential vocabulary and concepts. Vivid images, detailed sidebars, practice problems and math charts make learning concepts fun and easy. Hands-on lab activity supports STEM education. Text features include a glossary, index and table of contents to increase understanding of math and science concepts.