导入是课堂教学的第一步,其重要作用不可忽视。导入成功,能够吸引学生更多的注意力,延长学生的注意力集中时间,使学生对学习内容产生主动学习的强烈动机,使学生带着浓厚的学习兴趣参与到教学活动中来,激活学生的思维,提高学生的激情,降低知识的难度,实现由旧知自然地过渡到新知。导入的重要作用已得到了广大教师的一致认可,教师也都非常注重导入环节的设 Import is the first step in classroom teaching, its important role can not be ignored. Successful introduction, to attract students more attention, to extend the concentration of students’ time, so that students have a strong motivation to learn the content of active learning, so that students with a strong interest in learning to participate in teaching activities to activate the students Thinking, improve students’ passion, reduce the difficulty of knowledge, and realize the natural transition from old knowledge to new knowledge. Imported an important role has been unanimously approved by the majority of teachers, teachers are also very focused on the import link set