Students are given 16 problems. The student uses the answer from the previous problem to answer the next question. Students must be actively communicating to compare answers. If one answer is wrong, then all of the answers will be wrong. The students review, parallel lines and angles, midsegments, vertical angles, linear pair, isosceles triangles, alternate exterior angle of a triangle, congruent triangles, segment addition postulate, midpoing, and equation of a line.