最近,我有幸参加了县教研室举办的小学数学研课竞赛,我抽选到的教学内容是人教版三年级下册第六单元第一课时“面积和面积单位”。这部分内容是在学生掌握了长方形、正方形的特征,并会计算它们周长的基础上进行教学的。教材通过让学生摸、说物体表面和封闭图形的大小帮助学生初步建立面积的概念,并通过拼摆、观察、想象等丰富的数学活动帮 Recently, I was fortunate enough to participate in the primary school math class competition organized by the County Teaching and Research Office. The teaching content I selected was the first class of Unit 6, Unit 3, Volume 3 of the PEP, the “Area and Area Unit”. This part is based on the students mastered the characteristics of rectangular, square, and calculate their circumference based on the teaching. Textbook helps students to establish the concept of area by letting students touch and say the size of the surface of the object and the size of the closed figure. Through the help of abundant mathematics activities such as splicing, observation and imagination