text: I think that this is a good idea, but you could be a bit more lenient about the grade average that the students need to have. Instead of a B average it should something like a C or C+ average. Most students have a C average and most are already trying as hard as they can to achieve the grades that they currently get. Also if you lowered the grade average just a little bit the students would still trying to do better, for example if a student is getting D' s and F' s and the minimum grade that they can have is a C then they will be trying harder in school so they can play sports. Also the kids might be overwhelmed by all the school work and practice.