Define & Conquer
Claim squares by naming undefined terms, choosing precise definitions, fixing flawed definitions with counterexamples, and finding triangle areas with ½ab sin C. Get 4 in a row to win.
Try it free with your class: the demo runs right in your browser for 5 questions or 5 minutes, whichever comes first. No sign-up needed.
Or get every game, including all future games, with the All-Access Teacher License for $150.
What students practice
Point, line and plane as undefined terms, segment, ray and line notation, collinear and coplanar, precise definitions of angle, circle, radius, perpendicular and parallel lines, segment, midpoint, angle bisector and perpendicular bisector, counterexamples to flawed definitions, biconditional definitions, height h = b sin C, deriving Area = ½ab sin C, computing areas with exact and calculator values, solving for a missing side or included angle from the area, why sin 30° = sin 150° gives equal areas
Standards
OAS G.RL.1.1, 3 · G.2D.1.7 · PC.T.2.3
Common Core: HSG-CO.A.1 · HSG-SRT.D.9
More games for these standards and topics
How it works
- Open the game file in any web browser: Chromebooks, laptops or your smartboard. No accounts, no student logins and no internet needed once it's downloaded.
- Enter the players or teams, then press Start.
- Students take turns on one shared screen, so the whole class can play together on a projector or smartboard.
- Each purchase includes the game file and a one-page Quick Start guide.
