Hua didn't do well in math at first. He often gets 60 points in exams. When the first grade is promoted to the second grade, the math make-up exam is passed. The teachers don't like him and conclude that it is difficult for him to have a bright future. Until the appearance of teacher Wang Weike, he keenly discovered and affirmed Hua's talent in mathematics. With the approval of teacher Wang Weike, Hua's interest in mathematics arises spontaneously.