Key to Geometry - Books 1 thru 8

Here is a non-intimidating way to prepare students for formal geometry. Key to Geometry introduces students to a wide range of geometric discoveries as they do step-by-step constructions.

Using only a pencil, compass, and straightedge, students begin by drawing lines, bisecting angles, and reproducing segments. Later they do sophisticated constructions involving over a dozen steps-and are prompted to form their own generalizations. When they finish, students will have been introduced to 134 geometric terms and will be ready to tackle formal proofs.