A trip to Yosemite National Park becomes an adventure in learning perimeter and area! By examining Yosemite's landscape, mountains, lakes, waterfalls, and wildlife, students will use real-world examples of problem solving to increase their knowledge of geometry, allowing them to explore mathematics in a meaningful way. This full-color grade 4 math reader builds literacy and math content knowledge while introducing students to new concepts and vocabulary terms. The clear charts, graphs and data tables will make students more confident in their data analysis skills. Let's Explore Math sidebars and the extensive Problem Solving section provide extensive opportunities for students to practice what they have learned. Text features such as a glossary, index, captions, and a table of contents increase understanding and build academic vocabulary. The DOK-leveled Math Talk section includes questions that facilitate mathematical discourse and activities that students can respond to at home or school. Journey into Yosemite park with this high-interest text that is sure to captivate readers.