Polygraph: Figure it Out

This activity is intended as an introduction to geometric notation and vocabulary. Depending on prior knowledge, students could use the following to distinguish figures: points, lines, rays, segments, parallel, perpendicular, angles, congruence, midpoints, bisectors, betweenness, collinearity, and more. In the early rounds of the game, students may notice shape features from the list above, even though they may not use those words to describe them. That’s where you can step in. After most students have played 2-3 games, consider taking a short break to discuss strategy, highlight effective questions, and encourage students in their use of increasingly precise academic language. Then ask them to play several more games, putting that precise language to work. French translation courtesy of Jocelyn Dagenais: https://teacher.desmos.com/polygraph/custom/5b0d7daaf1d6000a709a2138

By Desmos _