在生物课程的教学过程中,会存在诸多不确定因素.很多学生的创新思路往往会与教师预设方案不符,有些教师认为这些学生的想法不符合实际,不愿意因为一些天马行空的想法打乱教学计划,甚至会采取回避、命令等措施压制学生的思想,十分不利于培养学生的理性思维.严重束缚了学生积极的求异、批判性思维,更阻碍了学生创造性思维的发展.如何确定生物课堂有效的交流形式来提高交流的有效性是当前生物教师亟待解决的问题. There are many uncertainties in the teaching process of biology course, many students ’innovative ideas often do not accord with the preconceived programs of teachers, some teachers think that these students’ ideas are not realistic and are not willing to disrupt teaching because of some abstract ideas Plan, or even take measures such as avoidance, order and other measures to suppress the student’s thinking is very unfavorable to cultivate students’ rational thinking, severely constrained the students positive differences, critical thinking, but also hindered the development of creative thinking students how to determine the biological class Effective exchange forms to improve the effectiveness of the exchange is the current biological teachers urgent problems.