初二学生物理成绩分化及预防南京理工大学附中孙威英初二年级是中学物理的起始年级，一般来说一学期后，从初二下学期开始学生物理成绩日趋分化。若不正视这一现象，将导致初三物理学习成绩的进一步分化，直接影响初中会考合格率这一总目标的升降。导致分化现象的因素，概... Grade 2 Physical Performance Differentiation and Prevention of Junior High School Students Nanjing University of Science and Technology Sun Weiying’s second grade is the beginning grade of middle school physics. Generally speaking, after one semester, students’ physics scores are gradually different from the second semester of the second grade. If you do not face this phenomenon, it will lead to further differentiation in the third grade of physics learning, which will directly affect the rise and fall of the overall goal of passing the junior middle school exam. Factors that lead to differentiation,...