1. Class size: The smart class in Chongqing No.1 Middle School adopts small class system, which can pay more attention to the learning situation and needs of each student. The class size of the high-quality class attached to the secondary school is larger, which makes better use of teachers' resources.

2. Teaching content: The intelligent class in Chongqing No.1 Middle School pays attention to students' personalized education and innovative thinking, and offers a series of extended courses such as scientific experiments, research-based learning, and exchanges with prestigious schools, so as to improve students' comprehensive quality and broad interests. Excellent classes in the middle school attached to heavy teachers pay more attention to students' all-round development and specialty training, and offer outreach courses and practical activities such as science, technology and art to cultivate students' comprehensive quality and innovation ability.