Ensure that students understand that in order to score a point, within 5 degrees means that their estimate is at most 5 degrees greater or at least 5 degrees smaller than the actual number of degrees in the angle presented by their partners. After each estimate, the students change roles. This game allows each student to build on and perfect their angle size sense. For example, they may already be able to identify right angles and straight angles and know that a right angle measures 90 and a straight angle measures 180 . They should be able to apply this knowledge to create a sense of the size of any angle.
Students can analyze their scores to assess how accurate their angle sense is.