Students reinforce their understanding of angle relationships formed by parallel lines and a transversal in this geometry-themed tic-tac-toe game. Learners identify corresponding, alternate interior, alternate exterior, and co-interior angles to solve for missing measures before claiming a square on the board. The classic three-in-a-row format adds friendly competition to angle-relationship practice.
Skills: angle relationships, parallel line theorems, algebraic reasoning, strategic thinking. Grade 10.

