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四则混合运算是小学阶段一项重要课程,学好并灵活运用四则运算,并形成一定的计算能力,将会终身受益。但是,计算教学的现状却令人深思,由于先进计算工具的普及,以往对学生计算能力的要求,如计算方法、技巧和速度等,现在很少提了。学生的计算能力较以前下降了,主要表现在计算正确率下降、口算速度减慢等,而学生对计算的兴
The four mixed operations are an important part of primary school. Learning and using the four operations flexibly and forming a certain computing power will benefit for life. However, the status quo of calculating teaching is thought-provoking. Due to the popularity of advanced computing tools, the requirements on students’ computing abilities, such as calculation methods, skills and speed, are seldom mentioned so far. The computing power of students has dropped compared with the previous ones, which is mainly manifested in a drop in the accuracy of calculation and a slowdown in the calculation speed of pupils. However, students’