There are some differences in fees and teaching methods between Sanhe Ruiding and Pyramid. The specific differences are as follows:

1. Fees: Sanhe Ruiding charges are relatively low, and are charged according to the actual situation of children. Pyramid charges are higher.

2. Teaching method: The main feature of Sanhe Ruiding is that Chinese and foreign teachers teach together to help children with poor foundation learn English better. There is no special model for pyramid teaching.

Generally speaking, there are significant differences in fees and teaching methods between Sanhe Ruiding and Pyramid. The specific choice needs to be based on personal needs and family education concepts.