Quantitative grading is a means for schools to manage students. Generally 20 is the upper limit. To put it bluntly, it is the condition for deciding punishment. The initial score is 0, and the violation of discipline will be deducted: 5 points will be deducted, warning will be given, and classes will be suspended for one day; To 10, severe warning, suspended for 3 days; 15, detention, stop 1 week; You'll be fired in 20 minutes. There is also a liquidation once every semester, and the scores deducted at the end of the period are accumulated to the next semester.