《数学课程标准》十分重视教学中师生的双边活动,尤其是学生的主体参与。教学中,教师要充分发挥小组群体活动的主体功能、互动功能、激励交往机制,培养学生积极参与、平等竞争、相互协作的良好学习习惯,提高学生数学活动的参与积极性。华东师范大学张奠宇教授曾经说过:“从教学生学会数学转向让学生做数学。”这里的“教”指的是简单的传授和以讲为主的灌输,而“做”是指学生的自主选择和亲身实践, The Mathematics Curriculum Standard attaches great importance to the bilateral activities of teachers and students in teaching, especially the students’ participation. In teaching, teachers should give full play to the main function of group activities, interactive functions, encourage interaction mechanism, cultivate students to actively participate in, equal competition, mutual cooperation and good study habits, improve students’ motivation to participate in mathematics activities. Professor Zhang Tianyu from East China Normal University once said: “Learning mathematics from teaching students to make them do math.” “Teaching here” refers to simple teaching and predominance instilling, and “doing” Refers to the student’s own choice and personal practice,