Our Geometry Kit is sold separately. It is not required, but it is helpful especially for visual learners. This kit gives students hands-on tools to help them learn and remember the geometric concepts taught in this book. The items included in the zipper pouch are:A 12" x 12" piece of paper to visually see a one square foot.Two cards that show WHY we use pi to solve for circumferenceA pencilA protractorA bouncy ball to demonstrate a sphere vs. a circleFifteen 1" x 1" foam squares are used to cover a 3" x 5" card.An Isosceles Triangle with triangle facts printed on itA Right Triangle with its own facts printed on itAn Equilateral Triangle with equal angles printed on itA card that proves a triangle is half of some square or rectangleA small card that lists the most frequently used geometry formulasA 3D cube cut-out with cube facts printed on it