This could be used in many ways: a station, with task cards, or as a whole class activity. I did it with students drawing an angle on their desk with a dry erase marker (they love writing on the desks!) and labeling it with their initials. Before they started the rotation, they wrote their measurement, the name of their angle, and the classification of their angle on a card. I then used this as assessment to see if they knew how to draw angles and classify. Then students went around the room with their protractors and measured their friends angles.