This is a fun way for your students to practice finding perimeter. Students choose any card to start on. They start by scanning the QR code on their card using an I-Pad or other electronic device. Once they have the answer, they record it on the answer sheet. They will need to search the room for another card that has that answer on it. Once they find it they will scan the code on that card to get their next question. It is so much better than a traditional worksheet. The students will have so much fun with the movement and technology that they won't even realize they are doing work! My students have been begging me to make more of these. They are actually excited to do the activity. The 16 cards correlate with 3.MD.8 from the third grade common core math objectives.
This is also available in a non-QR format.