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我经历的课堂教学评分
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曹大侠的《学生课堂教学评分的参考价值有多大》一文，引起了很多有意义的讨论（原文见http://blog.sciencenet.cn/home.php?mod=space&uid=40247&do=blog&id=483790）。我也说说我所经历的课堂教学评分，供有兴趣者参考吧。
先说学生课堂教学评分的参考价值能有多大。我们学校，年终考评或者升职、评终身教授的时候，基本上看三个方面的业绩：教学，科研和服务。每个人根据自己的岗位要求，给上述三项确定一个百分比的分布，考评的时候，拿业绩比照百分比来看你是否达到了规定的要求。关于学生课堂考评有多大的参考价值，我问了一下有关人员，得到的答复是：大约占教学评价的1/4。也就是说，在评价你的教学业绩的时候，学生的评价所占的权重远远不到一半儿。
我个人觉得这个25%的比例还是比较合适的，其原因有二：第一，学生的评分未见得就能真实反映一个教师的教学水平和效果。一来，学生就算到了期末，对课程的理解可能还是不够深刻；二来，学生打分受情绪的影响，不见得总是客观的。第二，学生打分表的设计不够科学。比如，我们这里的打分表总共有23项，在计算分数的时候，没有加权，每一项的重要性都是相等的。这当然不科学，不过，计算出一个合理的权重分配，也不是一件容易的事儿。
【补充两句：cxie2004学生评教不可不信 不可全信”。这个说法很有道理。我个人认为，“不可全信”的基础是，评价指标和学生评价时的态度都不能保证最佳状态。另一方面讲，“不可不信”在统计意义是站得住脚的，也是有事实依据的。据我所知，我身边的同事们，上课非常认真负责的，尽管不一定得到最高分，但其学生的评价不会差。学生评价比较差的，都是平时上课吊儿郎当的人。】
下面是我们学校评分用的23项：
- The instructor made the subject matter interesting.
- The instructor’s speaking style was clear enough to be understood.
- The instructor seemed interested in what he/she was teaching.
- The instructor knows the course material well.
- The instructor answered students’ questions
- The instructor’s syllabus clearly stated the learning objective, requirements, and grading procedures for the course.
- The instructor was well prepared for each class.
- The instructor used class time well.
- The instructor encouraged students to do their best work.
- The instructor was fair to the students.
- The instructor made himself/herself available for help in and out of class.
- I spent two hours studying for this class for every hour of actual in-class time.
- I feel I’ve learned a great deal in this course.
- The instructor followed his/her syllabus.
- The instructor encouraged me to think.
- The instructor has done an effective job in this course.
- I would like to acknowledge this instructor for excellence.
- The instructor related the course material to my previous learning experiences.
- The instructor stressed important points in lecture.
- The instructor encourages class discussion.
- The instructor returned examinations and assignments promptly.
- Course objectives were reflected in the exams.
- My grades reflected my performance in the course.
对于每一项，学生打分的时候可以选择：Strongly agree, agree, disagree, 或者strongly disagree，其对应的分数为4，3，2，1. 因此，教师最后得到的最高分数为4。学生在老师打分的时候，还可以用文字表达对老师的评价以及希望老师改进的地方。这部分虽然不是记分的一部分，但在考评的时候，仍然是重要的参考。课堂教学评分在每个学期末进行，下个学期期中的时候，教师可以看到自己上个学期的教学评价和学生的评语。
我翻了一下自己的教学评价记录，发现我们学校老师的平均得分在3.5以上，我个人的得分都超过了学校的平均数。看学生的评语，也还比较欣慰。在美国的华人教授，一般都会被学生在英语表达上挑刺，我也不例外。下面晒一晒我在教过的两门课上得到的评语：
第一门：Data Processing and Data Administration
学生评价如下：
Strengths：
- Dr.Li is a very good instructor.
- Thank you! Very fair!
- Very knowledgeable of the material. Always prepared. Made good use of instructional time.
- Very helpful to each of us. Helps release student's tension by being funny in class. Encourages us to complete work/assignments.
- Dr. Li is an excellent instructor - He made the class funny and we learned a lot.
Improvement:
- None. Maybe add a fieldtrip?
- Slow down his pacing of classes - leave more time for discussion.
第二门：Public Administration: Concepts and Applications
学生评价如下：
Strengths：
- He's approach able. Fieldtrips were exciting, informative. Very knowledgeable of the course materials. Good sense of humor.
- He made the class interesting. He was always making the subject fun every though he could not speak English clearly. Overall the class was fun.
- Always provide extra credits for students to know what about the subject.
- Very patient with students. Makes himself available outside class.
- Knowledgeable on the subject & fair to the students.
- Provides credits to make up grade. Mr. Li is very knowledgeable and is always willing to provide help in anything that isn't understandable.
- Returns assignment promptly. Offers a lot of extra credit opportunities.
- Class is fun. Good instructor. Class trip was fun & good learning experience.
- Gives students a fair amount of extra credit to the students. Gives students opportunities to pick up their grade.
- Able to adapt to students needs without deviating from his standards. Helpful to students.
- Very fair and give us chance to make up missed works! Thank you Mr. Li.
- Does his job. Gives a lot of extra credit. Very fair to students. Great instructor.
- He is fair 4 real. Great teacher.
- Good teacher.
- Very knowledgeable of subject content. Fieldtrips were fun and informative.
Improvement:
- Maybe learn how to speak English a little clearer for us to understand better.
- Instead of two exams there should be more tests that cover less chapters, I believe this will help students better learn and retain info.
- More guest speaker.
- Needs to find alternative to make subject more interesting.
- More powerpoint work will make things more clear.
- Need more group work.
- Need more help on speaking English.
- More guest speakers. More group discussion. Give homework & elaborate more on chapters. Don't bo by the book.
- Nothing. Its not the teacher. It is the subject that's boring.
- More fieldtrips.
https://blog.sciencenet.cn/blog-71485-484166.html
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