We know there’s a lot of people out there who think our school is a dead end. And that all the kids inside it are dead ends, too. … But they’ve got it all wrong. Just you wait and see! James, Rhondell, Sharice, and Marcel are four inner-city students on a quest to build the world’s largest tetrahedron with their math teacher, Mr. Collins. If they succeed, maybe Rhondell will make new friends, Sharice’s foster mother may start to care, James will discover something he’s good at, and Marcel’s dad will finally see that there is more to life than barbecue. Maybe they’ll even end up in the Guinness Book of World Records! Weaving together the stories of the kids, their teacher, and the community that surrounds them, award-winning author Shelley Pearsall has written a vividly engaging story about math, life, and the importance of friendship.