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Behind every great building is a great story. Each engineering marvel is an example of a tremendous tale of architecture. From castles to skyscrapers, get to know these wondrous works of brick, steel, and stone as you explore surface area. Packed with factual information and high-interest content, this nonfiction math book uses real-world examples of problem solving to build students' math and reading skills. Let's Explore Math sidebars feature math questions that challenge students to develop their math skills. A problem-solving section at the end of the book prompts students to reflect and apply what they've learned. Demystify math with this leveled book that makes learning math fun and accessible for kids ages 10-12 and appeals to reluctant readers.