This Custom Polygraph is designed to spark vocabulary-rich conversations about circles and ellipses. Key vocabulary that may appear in student questions includes: center, radius, horizontal, vertical, translation, dilation, and origin.
In the early rounds of the game, students may notice graph 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.