1. From the professional level of teachers, the teachers majoring in mathematics and big data in Tongji University are all graduates or above, so they can provide targeted counseling to students so that they can pass the exam with confidence.

2. In terms of teaching methods, the teaching mode of Tongji University's mathematics and big data majors is novel, and the traditional teacher-led classroom teaching is improved. Combining with modern multimedia teaching methods, animation, video and PPT effects are fully utilized to stimulate students' interest in learning and easily grasp the key contents of the classroom.