In order to fully meet the holiday learning needs of primary and secondary school students in the city and make their winter vacation study life colorful and meaningful, Weifang Education Bureau organized more than 2,700 excellent subject teachers in the city, recorded more than 8,000 high-quality "micro-lessons" videos, and established Weifang famous teachers' public welfare class to provide independent learning resources for Weifang students in grades 3-9 free of charge. At present, the relevant "micro-lesson" videos have been uploaded to Weifang Education Cloud Platform, and students can log in to the platform for free viewing according to their own needs.