Private: expensive tuition; Public: cheaper than private universities;

2. Teacher-student ratio:

Private: teaching in small classes, sometimes less than 10 students in a class, giving teachers and students more space and time to communicate; Public: there are many students and few teachers, and many courses are taught in large classes, with 50-200 people or even as many as 400 people; The communication and interaction between teachers and students are correspondingly reduced, which requires students to have the consciousness of conscious learning;

3. Student background

Private: Most students are rich children. Students from poor families want to go to such schools unless they can get scholarships; P: Students come from various backgrounds, and everyone's background is different. You can feel the multi-racial and multi-cultural life of American society more deeply;

4. Learning atmosphere:

Private: conservative, including many schools with religious backgrounds; Public: more open, which mainly comes from the diversified student background;

5. Learning environment:

Private: the number of people is small, and many resources are rich, so there is no need to compete with others. For example, borrowing books from the library; Public: the number of people is large and the resources are relatively lacking;