本文对小学运算定律教学目标的定位做了分析和思考,阐述了优化运算定律教学的具体做法,即引导学生在问题情境中初步感知运算定律,在建构运算定律意义中体验数学思想,在知识串联中体验运算定律价值,在练习中深化理解运算定律等。 This paper analyzes and thinks about the positioning of teaching objectives of the arithmetic of elementary arithmetic, expounds the concrete method of teaching arithmetic of optimizing arithmetic, which is to guide the students to initially perceive the law of arithmetic in the problem situation, experience the mathematical thought in the meaning of building arithmetic law, Experience the value of computing law, deepen the understanding of computing laws in practice.