1. Students in ordinary classes come from different learning backgrounds and ability levels, and their teaching objectives are relatively flexible and they pay attention to all-round development. If students have no special needs and goals in learning, ordinary classes can provide a good learning environment and teaching resources.
2. Key classes are classes set up by schools to train outstanding students. Students in key classes are generally selected and have high learning ability and potential. The teaching content of key classes is more in-depth and expanded, focusing on cultivating students' academic ability and competitiveness. If students have high learning ability and pursue higher academic performance, key classes are more suitable.