在初中生物教学中,首因效应极为重要。笔者联系自己的教学实践经验从五个方面阐述了获得良好教学首因效应的方法。多年教学实践证明,该方法能有效地提高教学成绩和教学效果,深受学生欢迎。 In the junior high school biology teaching, the first cause effect is extremely important. The author expounds the method of obtaining the first reason effect of teaching from five aspects in connection with his teaching practice experience. Years of teaching practice has proved that this method can effectively improve the teaching results and teaching effectiveness, welcomed by students.