asks: "I'm working at a major university in the US, and have been charged with posting pod-casts of class lectures on the internet. The problem is whether or not posting the videos would allow students to skip class and just download the lecture, instead. I guess the problem is trying to strike the right balance between allowing good students to take advantage of this resource, but discourage bad students from staying at home all the time and watching all the lectures right before the exam. So what methods can be used to provide these pod-casts for the students who actually attended class? In terms of when the lecture should be posted, what would be a good time-frame? Immediately after the class? 24 hours? One week? One class behind schedule?"
"In terms of trying to prevent this, here are some possible solutions I've come up with:
- Post the lecture with authentication based on the class list for those enrolled in the course, although this would not really discourage truancy.
- Post the lecture with authentication based on those who attended the class (student cards would have to be barcode-scanned at the beginning of class); this would prevent those who missed the class from downloading the lecture, but presumably they could receive a copy from a student who did attend the class. Additionally it would create a major hassle for all students to ensure that their attendance is registered.
- Post the lecture with a single password that the professor distributes to the class during the lecture. This would discourage students from missing the lecture, but likely those students missing class could simply obtain the password from another student who did attend the class."