This Instructional Activity is a part of the Lesson 2, Unit 1, Grade 8. The purpose of this card sort activity is to give students further practice identifying translations, rotations, and reflections, and in the discussion after they have completed the task, introduce those terms. In groups of 3 they sort 9 cards into categories. There are 3 translations, 3 rotations, and 3 reflections. Students explain their categories and come to agreement on them. On the blackline master, there are actually 12 cards.