Giving them more rewards, finding timely rewards, and praising individual children in front of the whole class will stimulate the competitive psychology of other children and let most children in the class control their own discipline. Individuals with poor performance can communicate after class. As for the reward measures, it depends on what you say in class. I have always given priority to rewarding small red flowers, telling parents and children that red flowers are very important. The future evaluation will focus on the quantity of safflower, so parents will also educate their children to take more safflower.