教师在教学中历演着双重角色，一方面教师历演着“教”的角色，成为学生的领路人；另一方面，教师以学生的年龄特征、知识现状和生活实际为前提，扮届着“学”的角色，和学生一道成为新知识的探京者。在课堂上，教师将这两种角色集中于一臂，还要能灵活转换，进出自如，所以得 Teachers play a dual role in teaching. On the one hand, teachers play the role of “teaching” and become the leader of students. On the other hand, teachers pretend to be students based on their age characteristics, knowledge status and life reality The role of “science” is to explore new people with students. In the classroom, the teacher will focus on these two roles, but also be able to flexibly convert, come and go, so