Purpose

This book goes through a visual and algebraic discovery of both the midpoint formula and the distance formula. It contains review materials like the Pythagorean Theorem and finding a mean in the warm-up, and some closing questions in the exit ticket. The book also contains challenge problems that extend these topics to 3D. We believe this book would work well for an advanced activity for 8th grade math, a "grade-level" activity for high school geometry, or a bit of review for students who are past standard high school geometry and more interested in how to apply these topics in 3D.