一、师生关系开放开放的师生关系,以及在此基础上营造出活泼、生动、和谐的教学氛围,是学生主体发展的前提。教师不妨作为学生的一分子加入到某一小组中,充当选取实验材料的角色,或是为实验步骤献计献策。这样,不仅能为本组学生实验的成功或创新提供后援,同时也能更好地激励其他组的学生奋发争先。因此,教师要 First, the teacher-student relationship Open and open relationship between teachers and students, and on this basis to create a lively, vivid and harmonious teaching atmosphere is the prerequisite for the development of student subjects. Teachers may wish to join a group as part of a student, as a role in selecting experimental materials, or as an experimental step. This will not only provide support for the success or innovation of the students in this group, but also be able to motivate the students in other groups to work hard. Therefore, teachers want