I still rely quite heavily on exam to evaluate student’s level of understanding, despite frequently condemning the students for being over exam-orientated. In practice it is also the single most important way to motivate a student to “learn” albeit forcefully. I am like kind of forced to deploy exam in my teaching process. Exam serves as a bait to, and a price of penalty to be paid by, the students. Exam could be the most controversial aspect in teaching. How to evaluate objectively and efficiently (e.g., within a 3-hour time slot) a student’s level of understanding if not via paper based examination? There may be other better method, but at this point of time assessing our students via non-exam method is not an option due to pragmatic considerations. Currently in our undergraduate level evaluation system, no such alternative exist. Exam (with a 70% weight) is mandatory for theory based courses. Frankly, I know no alternative to examination. I am likely to stick to it for many years to come.
I still stick to instructor-cantered teaching style, for I don’t know how to teach in student-cantered or problem-based approaches. Everyone knows that it is extremely hard if not impossible to squeeze words or reaction out of students for responses. Having student-cantered learning or problem based learning methods necessarily requires more reactive participants, whom our students are not. Until I know of a better option, I will continue to stick to instructor-centered teaching style.
I often made mistake, including conceptual error in the lecture notes, even in the final exam questions. However, I learned from my mistake and have improved over time. I try to be a humble person, apologise and make joke of myself for the wrong physics concepts taught in the lectures. Intentionally, I wish to show to the students a role model who is sincere to admit his weakness yet able to learn and to proceed beyond the mistake made.
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