Contents: * Math is Fun? * Fat Triangles and Flattened Bagels * Cool Curves * A Roomful of Right Triangles * Math in Music * Pachinko Math * GCF-LCM Machine * Baumkuchen, Spaghetti and Watermelon * Automat(h) * A Slice of a Cone * Paper Twists * Fold and Cut * Jigsaws from Tetrahedrons * Single and Double Duty Solids * Reversible Solids