对数学有兴趣和情感的学生认为学习数学是一种享受,一道数学题的完成,就是一个美的享受.有效的教学活动可以让课堂“动”起来,既有师生之间、生生之间的沟通、交流、合作,也有师生与教育资源之间的互动,从而促进学生的主动获取初中数学知识,拓展学生实践能力与创新问题意识的培养.一、课前预习学生提前预习新课的内容,让学生对新知识有一个初步的 Students who are interested in mathematics think that learning mathematics is a kind of enjoyment. The completion of a mathematics problem is a pleasure of the United States. Effective teaching activities can make the class “move” together, both between students and students. Communication, communication, and cooperation between teachers and students, as well as educational resources, promote the students’ initiative to acquire junior high school mathematics knowledge and expand students’ practical ability and awareness of innovation issues. Prepare students for preparatory classes in advance. The content of the study allows students to have a preliminary understanding of new knowledge.