No Prep: Just print and go!
Students will solve a total of 12 problems using facts about supplementary, complementary, vertical, and adjacent angles. After a student solves a problem, they look for their answer on a different problem card. When they find their answer, the move on to the next question. If they cannot find the answer, they know to go back and check their work. When they return to their original question and have answered all 12 questions, they know they have completed the loop successfully. Easy grading for you!
The questions are currently in order. I mix them up before I post them around the room. I allow students to "travel" with a buddy, but they must show all of their own work (on the work page provided). To save on copies, you can have the students use their own loose leaf paper. Students can start at any station. This activity took my 6th grade advance class about 25 minutes to complete.
I use this activity as a review. This would also work well as a center.