Book excerpt: Based on a true story, All of the Above is the delightful and suspenseful story of four inner city students and their quest to build the world's largest tetrahedron. Weaving together the different personal stories of the kids, their teacher, and the community that surrounds them, award-winning author Shelley Pearsall has written a vividly engaging story about the math, life and good-tasting barbecue. Filled with unexpected humor, poignant characters and quiet brilliance, All of the Above is a surprising gem.