学习是一个从不知到知、从已知到新知的认知过程。学生在获取知识的过程中,固然有知识结构与新知内容之间发生矛盾冲突的时候,会不自觉地产生疑问。“疑”是学习活动的开始,是学生探求知识的驱动力,课堂教学就是促使学生不断产生疑问和解决疑难的过程,使学生的注意力、思维凝聚在一起,处于智力活动的 Learning is a cognitive process from ignorance to knowing, from knowing to knowing. Students in the process of obtaining knowledge, of course, there is a conflict between knowledge structure and content of new knowledge, it will unconsciously generate doubt. “Doubt ” is the beginning of learning activities, is the driving force for students to explore knowledge, classroom teaching is to encourage students to continue to produce questions and solve problems, so that students’ attention, thinking together, in intellectual activity