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八旬老教授的“最后一课”:他站着讲了3个小时

2017-12-21 13:26:22   中国青年网

一间报告厅里,一名84岁高龄的老教授坚持站立3个小时为学生上课,期间在黑板上一丝不苟地写板书、画工程图……不久前,浙江大学机械工程学院退休老教授蒋克铸“最后一课”的视频在网络上受到了广泛关注,他的兢兢业业与师者风范让网友们纷纷“泪目”“致敬”。

阔别讲台近十年的“最后一课”

蒋克铸教授今年84岁,退休已有20年。64岁退休那年,老教授被返聘到浙江大学竺可桢学院,直至2008年告别讲台。他主讲的《机械原理》和《机械设计学》都曾经是浙江大学机械工程学院的热门课。

今年10月,蒋克铸向学校提出,希望再登一次讲台,为同学们上一堂《漫谈设计思维》。“就是想分享一下我的经验,年纪大了怕留下遗憾。”他说。

这是蒋克铸给同学们上的“最后一课”。11月10日下午,他提前了半个小时来到教室,为了这一课他足足准备了2个星期,课堂现场陆续来了150多名不同年级的学生,包括其他学院对设计感兴趣的同学。

13时30分,课程开始,蒋克铸缓缓走上讲台,向同学们深深鞠了一躬,全场掌声雷动。“再次登上阔别近十年的讲台,我们能感受到老教授对教书育人的那份眷恋。”浙江大学机械工程学院学生党总支书记项淑芳回忆起当时的场景说。

蒋克铸说,现在的条件好了,不缺设计学的教材,但里面有实践经验的少之又少,自己年纪越大,就越想回到课堂上给现在的学生们讲讲自己的教学经验,将自己一辈子积累的知识传承下去。

原定的上课时间,是下午1点半到3点半共2个小时,由于讲课内容丰富,课程延长到了3个小时。在这3个小时中,蒋克铸步履有些蹒跚,却没有休息过。讲台下的学生几次请他坐下休息一会,他却很是“倔强”地说:“站着上课,是一名教师最基本的素养。”

自制教具钻研课本,“教”“授”精益求精

课堂上,蒋克铸小心翼翼地翻开了一张1米×0.6米大的泛黄的图纸,这是他上个世纪七十年代为建设富春江水工机械厂绘制的。

“我讲课常常要用到各种教学‘道具’。”蒋克铸说,通过这张图,他想告诉大家系统的思维,要从总体的角度来认识问题。

打开蒋克铸的资料包,还有很多讲课用的“道具”——数张手绘幻灯片。这些工程设计幻灯片多是他自己画在纸上,再通过复印技术印到塑料板上。虽然几十年过去了,但画面依旧清晰。

蒋克铸说,上好课就是“演好一场剧”,道具之外,最重要的是“剧本”。“一场剧,即便来自厚厚的名著,但剧本还是需要再创造,才能被观众看懂。上课的课本也是如此,不能通过教材生搬硬造上去,而是要通过自己的思路重新调整。”

在上《现代工程设计》一课时,为了让课程内容紧跟时代,蒋克铸每年都要去上海最大的工业展览,收集样品和画册用于教学。在蒋克铸家里,还完好保存着两大箱打印出来的每年学生上交的设计作业,按照学生的年级垒得整整齐齐。随便拿出一份作业,就有近100页的篇幅。

蒋克铸在教学第一线工作了近50载,直接教授过的学生有4000多人,退休后还指导了600多名学生。他常常亲自带着学生们走出课堂,走进工厂、车间开展“第二课堂”。上海宝钢的工厂、嘉兴的秦山核电站、安吉天荒坪抽水蓄能电站以及广东等地的工厂都留下过蒋克铸和学生们的身影。

1996年从浙江大学机械工程学院毕业的王喜冬,曾经跟蒋克铸学习了一年多,他回忆说,当年蒋老师指导学生们为厂家设计信封切模机、信封成型机、信封贴膜机、摩托车的动力传动系统,最后都成功地变成了商品。他至今很感慨:“蒋老师要求很严格,做事一丝不苟,跟着他扎扎实实地学了很多有用的东西。刚参加工作时,其他应届生要几年才能上手工作,我可以直接独立工作,领导和老高工们都很吃惊,都感叹确实不一样!”

“我育人,故我在”,师者风范感动网友

蒋克铸原本为“最后一课”准备了四个部分的内容,由于对工程实例的详细展开,课程内容没能全部讲完,他有些不好意思,承诺将余下内容整理成文档发给学生们。

“课程结束时,蒋克铸老教授对三尺讲台恋恋不舍,我很受感动。”浙江大学机械工程学院模具班研一学生龙威说。

“一个人一生的价值是要为周边的人留下些什么。”这是蒋克铸退休后一直在思考的问题。他说,一代人离开了,一定要把实实在在的经验保留下来,不能让年轻人重复走老路、走弯路。

蒋克铸的夫人过世已有近十年,他在夫人的墓边为自己留了一块碑,刻好了墓志铭:“我造物,故我在;我育人,故我在;我创思,故我在。”

蒋克铸的事迹让众多网友深受感动。网友“相信明天”说,学高为师、身正为范,老教授的言行不愧“人类灵魂工程师”的称号,向老教授致敬!网友“summer”说,毕业多年,仍然记得学校里骑着破旧自行车满头白发的老教授,每思及此就会更加认真地对待自己的工作,这样才不辜负师长教诲之恩。

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