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运用运算律进行计算和简便计算是小学数学教学中数与代数领域的重要问题,引导学生掌握这些运算定律,目的是要让学生能运用运算律快速而准确的计算。但教学小学数学教学实践情况来看,学生在学运算律时表现的较为轻松,而应用中却总是出现错误。本文结合小学数学教学实践,对提高运算律教学的一些做法在此提出分析,希望能给同仁们以借鉴。一、结合认知进行直观教学,建立运算模型在对学生的计算中发现,如25×(40+7),学生会算
The use of arithmetic laws to calculate and calculate conveniently is an important issue in elementary mathematics teaching in the fields of numbers and algebra. Students are expected to master these laws of arithmetic in order to enable students to make quick and accurate calculations using arithmetic laws. However, in the teaching practice of mathematics teaching in elementary schools, students are more relaxed in learning arithmetic, while mistakes are always made in application. Based on the practice of primary school mathematics teaching, this article analyzes some methods to improve the teaching of arithmetic law, hoping to give my colleagues a reference. First, the combination of cognitive intuitive teaching, the establishment of computational models found in the calculation of students, such as 25 × (40 +7), the students will count