Find NASS, a chain of big-name educational consulting institutions. When you are really not sure about the quality of education, it is safest to choose these institutions. Moreover, Nasi himself has been in Ningbo for a long time, and his reputation among parents in Ningbo is probably not bad. In mathematics, Nash has special thinking training, which is also very good for children and can't find anything wrong. Thank you for adopting and recognizing my answer.