[主持人按　从这一节课看来 ,与旧课程相比 ,新课程最大的变化在于 ,教师角色的转变——从知识传授者的角色 ,转变为学生学习活动的合作者、引导者和参与者 .下列这些变化 ,从这一课的设计中 ,可以处处、时时不断地感受到 :传统意义上的教师教和学生学 ,不断地让位于师生互教互 From the point of view of this class, the main change of the new curriculum compared with the old one is that the role of the teacher has changed - from the role of the knowledge imparter to the collaborator, the leader and the student learning activity. Participants. The following changes, from the design of this lesson, can be felt everywhere, from time to time: the traditional sense of teacher education and student learning, constantly giving way to teachers and students to teach each other