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这是华应龙老师在北京市东城区“男教师风采”活动中执教的《中括号》一课的教学片断。当引导学生理解了中括号的作用和用法之后,华老师转入“尝试中规范”这一环节,出示了一道题目让学生练习。师:请看这道题42×〔169-(78+35)〕,脱式计算怎么写?请同学自己试一下。学生作品1:4
This is the teaching piece of “Braces” lesson taught by Hua Yinglong in the “Male Teacher Style” activity in Dongcheng District, Beijing. After guiding students to understand the role and usage of brackets, Teacher Hua moved to the “Trying for a Code” link and presented a topic for students to practice. Teacher: Please look at this question 42 × 〔169- (78 +35)〕, how to write off calculation? Please try it yourself. Student work 1: 4