He Dan education is good at mathematics. In the annual national high school mathematics league, among the winners of the first prize in Shaanxi Province, He Dan students account for more than one third. In the college entrance examination, more than 80% students can get full marks in mathematics. For more than 20 years, education in He Dan has been focusing on middle school training. He has rich teaching experience and excellent professional level, and has teaching experts and special-grade teachers as the main lecturers in colleges and universities. In the past 20 years, we have made good achievements in teaching results.