现代教学论认为,学生的数学学习过程是一个以学生已有的知识和经验为基础的主动建构的过程,只有学生主动参与到学习活动中,才是有效的教学。因此,我们必须调动学生学习数学的兴趣,激发学生探求知识的欲望,使学生变被动地接受为主动地获取,变学会为会学,变苦学为乐学,使学生真正成为课堂学习的主人。让学生主动去解决问题,发现规律,优化认知,体验自我实现的价值,感受进步与 Modern teaching theory holds that the process of students ’mathematics learning is a process of active construction based on students’ existing knowledge and experience. Only when students take the initiative to participate in learning activities, can they be effective teaching. Therefore, we must arouse students ’interest in learning mathematics, stimulate students’ desire to seek knowledge, make students passively accept as active acquisition, change learning to learn, and turn misery into learning so that students can truly become the masters of classroom learning. Allow students to take the initiative to solve the problem, discover the law, optimize cognition, experience the value of self-realization, feel the progress and