In fact, the answer can be imagined. One-on-one effect is better, because then the teacher will formulate a course that belongs to you and suits you according to your learning situation.
Let's start with Xiao Ban. Secondly, the number of small classes is less than that of large classes. For a simple example, if there are 20 students in a large class and 6 students in a small class with only one teacher, it will be difficult for all 20 students to take care of them, but 6 students are different. From the perspective of students, people lack a sense of urgency and will urge you to study. If there are more people, some people tend to become lazier. You will also find that the tuition fees of the three classes are different. As the saying goes, value for money. You must have your own answer now, right?