Since around 2000, many online courses have appeared on the market. Depending on the needs and groups of people attending the class, there are many ways to take the course. Among all the class groups, this article focuses on analyzing the behavior of elementary school students in English lessons. By interviewing the parents of seven ordinary Chinese primary school students and the teachers of the online courses, this article hopes to further reveal the learning behavior of primary school students in ordinary families and the expectations of parents for the curriculum. Online English classes for elementary school students have unexpected demands on the learning atmosphere in the classroom, and in the primary school classroom, the interaction between teachers and students is particularly important.