How about having a contest for students to make suggestions on how to improve your school? Have a committee to draw up a list of the top 3 or 5 suggestions and then let the whole school vote on the ones they want to pursue. The more students feel ownership of the project, the more invested they will be in making it work!
Some of the ways that you can improve your school include, partnering with researchers, managing and sharing data and reducing the fixed cost. These ways can improve the school by providing the students with effective platform to express themselves.
Have parents back the teachers, go to OpenHouse, hold their children responsible. Have the schools hold the teachers responsible for quality teaching. Have the students ask for help from their teachers if they don't understand. Have everyone be responsible for showing respect .