Within my college, teachers generally allow any student who earned a D or lower on an exam, to retake the exam. While I do not need to follow this policy in my courses, many students expect their instructors to offer retakes.
I would like to offer retakes, but see two problems:
- Setting a fixed cut off at a "D" seems unfair to students. If a student earns a single percentage point more than this, they cannot retake it, but the student who retakes it stands a chance to earn a full A.
- Allowing all students to retake would create too much extra work for me. Some students who earned a 95% would still try to retake it to get 100%.
If there a fair method of allowing exam retakes that discourages every student from taking them?