旧版本的《数学课程标准》指出:“计算教学应重视口算,加强估算,提倡算法多样化。”所以在我们平时的计算教学过程中都追求学生的算法多样化,让学生用自己喜欢的方法来计算,总认为这样的教学就是新课改的精神,就是追求学生个性化发展的过程,但是,在进行数学教学过程中,我们也慢慢体会到如果一味地追求算法 The old version of the “Mathematics Curriculum Standard” states: “Computing teaching should emphasize port arithmetic, to strengthen the estimation, to promote the diversity of algorithms.” So in our usual course of calculation and teaching are pursued students’ algorithm diversification, so that students use their own like Method, to calculate, always think that such a teaching is the spirit of the new curriculum reform is the pursuit of personalized development of students, but in the process of mathematics teaching, we also slowly realized that if blindly pursue the algorithm