This game is great practice for classifying triangles by sides and by angles (acute, obtuse, right, equilateral, equiangular, scalene, & isosceles).
Students play in small groups and take turns. After drawing a card with a diagram or a set of measurements for a triangle, the student has a choice whether to cross off the term for the angle classification OR the classification by its sides on the grid-style game board sheet. Four spaces marked off in a row results in a win!
Students can use strategy with their choices, but must state the classification aloud for other players to verify.
Try these other resources too:
Middle School Pre-Algebra Super Bundle
Triangle Classification and Impossible Triangles
Fractions, Decimals, & Percents: Always, Sometimes, Never