How is the education in Jinan and Xue Hai?

My children graduated from junior high school this year, and their academic performance is always wandering in the middle reaches, and their academic performance is always not going up. We are in a hurry. After visiting many schools, I found that Xue Hai was very good in all aspects, so I asked my children to report to Xue Hai. After studying there for half a semester, his academic performance improved obviously and he won the first place in his class in the graduation exam. Successfully entered the ideal school.