Rewarding kids with things they get to do instead of things they get to have. When they do something good, they pick from the jar and get things like to stay up a little later or play outside a little longer etc. Cute idea!
(I love these ideas. Great for summertime ideas to help keep kids learning.) 19 Ridiculously Simple DIYs Every Elementary School Teacher Should Know (great modifiable ideas for piano lessons and homeschool too!
10 Classroom Procedures that Will Save Your Sanity