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简便运算是小学数学计算中最常见的一种,贯穿于数学教学的始终。而且学生最一开始接触到计算时就会被老师从各种不同的角度来渗透简便计算的思想。它不仅是对学生进行思维灵活性锻炼的重要手段,而且对缩短学生计算时间、提高计算能力也起到了非常大的作用。但是在传统的简便计算教学中,教学效果不理想,如何帮助学生改变简便计算的错误认知成为当下亟须解决的问题。
Simple calculation is the most common kind of elementary mathematics calculation, which runs through mathematics teaching. Moreover, when students first come into contact with the calculation, they will be infiltrated by the teachers from a variety of perspectives to calculate simple ideas. It is not only an important means to train students’ flexibility in thinking, but also plays a very important role in shortening the calculation time and improving the computing ability of students. However, in the traditional simple calculation teaching, the teaching effect is not ideal, how to help students change the simple calculation of the false cognition becomes the urgent problem to be solved.