《新课程标准》指出,学生数学学习活动是一个生动活泼的、主动的、富有个性的过程。学生是学习的主人,教师是教学的组织者和学生自我发展的引导促进者;教师的任务就是为学生营造良好的学习氛围,给学生提出适当的要求,指导其学习的方法,让学生带着任 The New Curriculum Standard states that student learning activities in mathematics are a lively, proactive and personal process. Students are the masters of learning. Teachers are the organizers of teaching and the guide facilitators of student self-development. The teacher’s task is to create a good learning atmosphere for students, make appropriate demands to students, guide their learning methods,