《义务教育数学课程标准》指出:数学教学活动要求教师调动学生学习的积极性,向学生提供充分从事数学活动的机会。学生是课堂学习的主人,教师作为学习活动的组织者,要充分发展和培养学生的主体意识,引导他们积极参与教学活动,充分发挥其主体能力,参与学习的全过程。 The compulsory education mathematics curriculum standard points out that the mathematics teaching activities require teachers to mobilize the enthusiasm of students to learn and provide students with opportunities to fully engage in mathematics activities. Students are the masters of classroom learning. As the organizers of learning activities, teachers should fully develop and cultivate the students’ sense of subject, guide them to actively participate in teaching activities, give full play to their subjective ability and participate in the whole process of study.