The initial password is the last 6 digits of the SHedu@ ID number. According to official website who inquired about the air classroom, the initial password of the air classroom is the last 6 digits of the SHedu@ ID number, and the password of the air classroom of Chengyang District Education and Sports Bureau also follows this setting. The application of big data analysis in the "classroom in the air" has realized the quality monitoring with full sample, big data, region and individuality, and can know the real situation of teaching and learning of every school, teacher and student anytime and anywhere.