《数学课程标准》指出:“数学教学是以数学活动为基础的教学,是师生之间、学生之间交往互动、共同发展的过程。”学生是数学学习的主人,课堂教学中,教师要充分调动学生学习的积极性、主动性,向学生充分提供从事数学活动的机会,让学生动心、动脑、动手、动口,经历数学化的教学过 The standard of mathematics curriculum states: “Mathematics teaching is a teaching based on math activities, and it is the process of interaction, common development between students and teachers.” Students are the masters of mathematics learning. In classroom teaching, teachers should Fully mobilize the enthusiasm of students to learn, take the initiative to fully provide students with the opportunity to engage in mathematical activities, so that students tempted, brains, hands, mouth, experienced mathematical teaching