Learn mathematics hands-on and visually through geometry. Topics include trianges, area, volume, ratios, Pythagorean theorem, and tiling, and so forth, while practicing arithmetic, fractions, and decimals. Student works independently. RightStart™ Mathematics: A Hands-On Geometric Approach Worksheets are needed for the Lessons. A copy of the Objectives, Table of Contents and sample lessons, can be found at the bottom of our Placement Test page..