新课程教学理念,是要改变以往教师的“中心”地位,把学生从“教”中解放出来,体现学生的主体地位,师生要相互交流,相互启发,相互补充,让学生在一种宽松,活跃,自由的气氛中学习,促进学生学习的欲望和兴趣,引导学生探究知识发生、发展过程,启发学生发现、提出、分析并创造性地解决问题,使学习数学成为一个再发现、再创造的过程.学生的这种主体地位的体现,情境教学具有一定的代表性。在课堂上,营造一种富有情 The teaching concept of the new curriculum is to change the “center” status of the teachers in the past and free the students from “teaching ” to reflect the dominant position of the students. Teachers and students should exchange ideas, reinforce each other and complement each other so that students In a relaxed, active and free atmosphere to promote the desire and interest of students to learn, guide students to explore the occurrence and development of knowledge, to inspire students to discover, propose, analyze and creatively solve the problem, make learning mathematics a rediscovery , And then create the process of the student’s manifestation of this dominant position, situational teaching has a certain representation. In the classroom, create a rich affection