Fit. A score of 79 in mathematics is not a good grade, and an excellent class is needed. Excellent classes are guided by experienced math teachers or professional educational institutions. According to students' learning situation and problems, provide personalized counseling to help students solve the difficulties in mathematics learning and fill the knowledge gap. Excellent math teachers can stimulate students' interest in mathematics through vivid and interesting teaching methods, provide novel and interesting math problems and challenges, and make students willing to actively participate in learning and gain a sense of accomplishment in learning.