Use your phone in class?
Students love technology. Even that's an understatement. So they'll be motivated to earn time on it. Students can redeem a certain amount of time to use their phone or computer in class. The rules are up to you though! Maybe they can listen to music or they get to play educational games. No matter what, students will just be happy to have some fun online.
There are many ways to run this reward !
Students will love the opportunity to relax for a bit and enjoy their technology.