Played like the game “Hedbanz,” where students have to guess the vertex form and/or standard form and/or graph of the quadratic function attached to their heads by asking other students “yes” or “no” questions. This game requires students to write equations in vertex form after finding the vertex and another point on their graph to get the “a” value. Students must know their translations. It also requires students to rewrite quadratics from vertex form to standard form by squaring binomials (an area of major error with students). Students will also practice graphing skills. Preferable if students use mini white boards.
Each graph is numbered so the teacher can easily check with the included answer key. When students are correct, they can grab another and play again.
Includes 2 copies of 20 graphs with key (all numbered 1-40, so students don’t try to cheat by asking for their number and finding their “partner’s” graph). Print graphs (use 1 set or 2 depending on if you have more or less than 20 students) and attach to string so students can tie to their heads.
Alternative: Have students tape graph to their back or forehead, if making headbands is too time-consuming.
Students work at their own pace, so high-level students should get through 3-4 graphs, whereas low-level students should finish 2-3 graphs. Great activity for scaffolding.