Changed the platform Bao, the Chinese name of sam, an English teacher in Gaotu classroom, is the founder of Super Spelling Course, 1 1 year teaching experience in English training industry, and the holder of TESOL international English teacher qualification certificate. Covering preschool education, primary school, junior high school and senior high school English, based on spelling, let children learn words from pronunciation, and master the pronunciation characteristics of letters and the pronunciation rules of letter combinations. By the end of July, 2022 13, the teacher had switched platforms, so Gaotu classroom platform no longer enjoyed the copyright of teachers' videos, so it could not be found.