Everyone must attend. Teachers are required to participate in public courses every year, and teachers must participate in the training of public courses every year. The total study time of continuing education is not less than 80 hours, professional courses are not less than 56 hours, and public courses are not less than 24 hours. The main purpose of teachers' participation in public courses is to cultivate teachers' personal ability, enhance teachers' knowledge in other aspects, and strengthen communication and exchanges between teachers.