This angle sort requires students to know obtuse, acute, and right angles.
When I used the angle sort, I incorporated it in an angle lesson for the students to sort with a partner. I printed and cut several sets, and stored them in zip lock bags.
After the sorting game is introduced, the students can also use it if they finish early. In addition, you could also use the sorting game in centers.
I paired the sorting game with the angle presentation also available in my store.