教学活动的对象是学生,教学活动的出发点和落脚点,都是为了促进和提升学生学习能力、学习品质和学习情操。构建主义认为,学生是学习活动的主人,教学活动的参与者,在整个教学活动进程处于主体地位。同时,新实施的初中数学课程标准指出:“学生是学习活动的主体,重视学生主体特性的运用,坚持以生为本,将‘一切为了学生的发展’作为教学活动 Teaching activities of the object is the students, the starting point and end result of teaching activities are to promote and enhance students’ learning ability, learning quality and learning sentiment. Constructivism holds that students are the masters of learning activities and the participants of teaching activities, playing a dominant role in the whole process of teaching activities. At the same time, the newly implemented junior high school mathematics curriculum standard states: ”Students are the main body of learning activities, emphasizing the application of students’ main characteristics, insisting on taking students as the foundation and teaching everything for the development of students