In the field of education, data-based decision-making actually includes two levels: one is external educational accountability, the other is internal teaching decision-making. External based educational accountability is based on data decision-making at the school management level, and the way data intelligence improves teaching and learning is based on internal teaching decision-making. "Internal based teaching decision-making is from the micro level of improving teaching quality". "In classroom teaching, if teachers can learn to use data, they can understand students' abilities and shortcomings, so as to improve teaching plans.".