- Students get up and move around. I also like to hide one or two clues under desks or chairs for an added aerobic challenge
- Students talk to each other to problem solve. Having no set order gave the opportunity for students to work with or listen to different groups of people problem solve.
- Differentiated for ability. Students can work through easier questions quickly, or focus on the more challenging ones.
- Teacher is able to circulate and hear students thinking process
- QR Codes give Instant feedback. In my first run I used written clues and when over correct clues at the end of class. By adding QR codes students received a clue to the mystery if they were correct or a "Try again or consult Miss Ziel" message for the incorrect answer.
- CHEATERS! Some student scan each code looking only for the clue, or analyze the QR code looking for the one that is different. I've combatted this problem by conversation with students about the purpose of the activity. The goal is to make practice problems more fun, work collaboratively and see a variety of questions to prepare for exams.