托福写作素材：老师应该被老师评价还是被学生评价

 分类讨论如果评估的目的是告知而不是评判则是没有问题的，但如果是评判教学质量就有问题了。

　　The answer to the question depends on the purpose of the evaluation¹. If the purpose of the evaluation is to inform, rather than to judge, then anybody is qualified² to express an opinion which can be considered with respect to the organization's aims. On the other hand, if students' evaluations³ become a means for judging the quality of the teaching then there could be a number of potential misconceptions and misunderstandings:

　　"差学生"蓄意给老师打低分，好学生参与度不高。

　　One of my observations regarding the evaluation by students is, that more often the disappointed and underperforming students express their dissatisfaction most intensively, while good and content students prefer to be quiet, or they are just like that, and often are reluctant even in participating in such surveys which distorts the real situation in a class and draws a rather bad picture.

　　数据有问题；领导没有安全感所以给老师打分；老师为了得到高分

　　不负责的先给学生高分。

　　My personal experience reveals that (1) instruments used in teacher's evaluation by students are poorly developed and the data gathered from the survey have not been properly analyzed⁴; (2) not every student is truthful⁵ in the evaluations; (3) insecure leaders of the school use the evaluation as a means to show that they are doing something to improve the learning environments and learning. However, the fact is they are not only insecure but also incompetent⁶; (4) teachers who want to get high evaluations tend to lower their teaching or assessment⁷ standards so that students can get higher grades and therefore give more positive evaluations. In short, if the instruments are the traditional ones that we commonly encounter, then I advice against the practice.

　　In a university where the students are from diverse backgrounds, student evaluations will be less consistent, depending on each student's perceptions of the reasons for being there and expectations of the teaching process based on their previous experiences. Therefore, in addition to looking at the average ratings (which is the most commonly used index), evaluators will need to be trained to look at other characteristics of the data, such as the nature of the distribution, its skewness and its variance⁸.

　　重点搭配和句子摘抄：

　　a means for xxx ：一个xxx的方法

　　potential misconceptions and misunderstandings: 潜在的错觉和误解

　　express an opinion ：表达一个观点

　　the purpose of the evaluation ：评估的目的

　　disappointed and underperforming students ：失望且表现差的学生

　　good and content students ：满意的好学生

　　distorts the real situation ：歪曲真实的情况

　　have not been properly analyzed：被分析的很糟糕

　　are not only insecure but also incompetent：不仅没有安全感而且很无能

　　lower their teaching or assessment standards ：降低讲课和评估的标准

　　are from diverse backgrounds：来自不同的背景

　　the nature of the distribution, its skewness and its variance：分布、偏度和方差（统计学中专业的词汇）

　　适用题目：

　　Teachers' performance should be evaluated by students rather than by other teachers.

1 evaluation   

n.估价，评价；赋值

参考例句：

• I attempted an honest evaluation of my own life.我试图如实地评价我自己的一生。
• The new scheme is still under evaluation.新方案还在评估阶段。

2 qualified   

adj.合格的，有资格的，胜任的，有限制的

参考例句：

• He is qualified as a complete man of letters.他有资格当真正的文学家。
• We must note that we still lack qualified specialists.我们必须看到我们还缺乏有资质的专家。

3 evaluations   

估价( evaluation的名词复数 )； 赋值； 估计价值； [医学]诊断

参考例句：

• In fact, our moral evaluations are merely expressions of our desires. 事实上，我们的道德评价只是我们欲望的表达形式。 来自哲学部分
• Properly speaking, however, these evaluations and insights are not within the concept of official notice. 但准确地讲，这些评估和深远见识并未包括在官方通知概念里。

4 analyzed   

v.分析( analyze的过去式和过去分词 )；分解；解释；对…进行心理分析

参考例句：

• The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
• The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》

5 truthful   

adj.真实的，说实话的，诚实的

参考例句：

• You can count on him for a truthful report of the accident.你放心，他会对事故作出如实的报告的。
• I don't think you are being entirely truthful.我认为你并没全讲真话。

6 incompetent   

adj.无能力的，不能胜任的

参考例句：

• He is utterly incompetent at his job.他完全不能胜任他的工作。
• He is incompetent at working with his hands.他动手能力不行。

7 assessment   

n.评价；评估；对财产的估价，被估定的金额

参考例句：

• This is a very perceptive assessment of the situation.这是一个对该情况的极富洞察力的评价。
• What is your assessment of the situation?你对时局的看法如何？

8 variance   

n.矛盾，不同

参考例句：

• The question of woman suffrage sets them at variance. 妇女参政的问题使他们发生争执。
• It is unnatural for brothers to be at variance. 兄弟之间不睦是不近人情的。