《数学课程标准》指出教师的任务是创设教学情境,激发学生的学习兴趣,诱导学生投入到丰富、生动的活动过程,经历一个实践和创新的过程,从中体验探索数学知识的乐趣,树立数学学习的信心,认识到数学的意义和价值,使学生不仅“喜欢数学”,而且“会做数学”“,会用数学”,真正使学 The standard of mathematics curriculum points out that the teacher’s task is to create a teaching situation, to stimulate students’ interest in learning, to induce students to devote themselves into a rich and vivid activity process, to experience a process of practice and innovation, to experience the fun of exploring mathematical knowledge and to establish mathematical learning , Recognize the significance and value of mathematics, so that students not only “like math”, but “will do math”, “will use math”, really make learning