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构建的过程,只有学生主动参与到学习过程中,才是有效的教学。但在实际数学教学中,有太多机械、沉闷和程式化,缺乏生气、乐趣和对好奇心的刺激。尤其是计算教学,学生的数学学习方式单一、被动,大多的教学过程是老师花几分钟把计算的步骤与学生一说,接着就是大量的练习,学生只懂得依样画葫芦,对于为什么这样算不求甚解,只重会算就行。于是 Modern teaching theory holds that the process of students’ mathematical learning is a process of taking the initiative to build on the existing knowledge and experience of students. Only the active participation of students in the learning process is an effective teaching. But in real math teaching there is too much mechanization, dullness and stylization, lack of anger, fun and curiosity. In particular, computational teaching, students’ single and passive mathematical learning, most of the teaching process is the teacher spent a few minutes to calculate the steps with the students, then a lot of practice, students only know how to follow suit, for why this calculation Do not ask for a solution, just count it. then