[教学内容]人教版数学四年级(下册)第27页。[教学目标]1.理解并掌握乘法分配律的意义,能运用定律进行初步的简便计算;2.培养学生观察、比较、分析、抽象、概括的数学能力;3.培养学生善于观察、乐于思考、勇于探索的学习习惯。[教学重点]理解乘法分配律的意义。[教学难点]经历乘法分配律的归纳过程。[教学过程] [Teaching content] PEP fourth grade (Volume II) p. 27. [Teaching Objectives] 1. To understand and grasp the significance of the law of multiplication and distribution, and to use the law for preliminary and easy calculation; 2. To train students to observe, compare, analyze, abstract and summarize mathematical ability; 3. To train students to be good at observation and willing to think , Brave to explore the study habits. [Teaching Points] Understand the Meaning of Multiplication Distribution Law. [Difficulties in teaching] Experience the inductive process of multiplication distribution law. [Teaching process]