1. Depth of teaching content: The teaching content in one primary school education is relatively deeper and more comprehensive, paying more attention to the details and deep understanding of subject knowledge, while the two primary schools are relatively simpler, paying attention to the basic mastery and simple application of subject knowledge.

2. Teaching methods and learning methods: One primary school prefers diversified teaching methods and learning methods, such as inquiry learning and cooperative learning, while the other two primary schools pay more attention to traditional teaching methods and learning methods.