This polygon names foldable geometry activity would be the perfect way to help my geometry students take notes on the names of polygons based on the number of sides they have! I love that it has triangles, quadrilaterals, pentagons, hexagons, heptagons, octagons, nonagons, decagons, hendecagons, dodecagons, and n-gons! I love using interactive notes in my geometry classroom. We teach this right at back to school time so it would be such a fun activity to get my Geometry students excited!
Triangle Trap is a 2-player geometry game that allows students to practice classifying triangles based on sides and/or angles. Players roll a die to identify a type of triangle before searching for one on the game board that fits the name. The first player to get 5 in a row - horizontally, vertically, or diagonally - wins the game.
Man, "trilliant" just sounds like a joke. Like someone was thinking "What sounds even more amazing than 'brilliant?' Oh man, I got it: TRILLIANT" ... nah, it probably has to do with the triangle shape. All the same, useful gemstone reference :)