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sagemathinc / cocalc

CoCalc: Collaborative Calculation in the Cloud
https://CoCalc.com
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CoCalc Instructor: add collect and hide from student option #3663

Open profbrady opened 5 years ago

profbrady commented 5 years ago

When using CoCalc for giving tests I would like an option to collect assignments and hide the associated students' assignment folders from their view until the assignment is returned. This would keep students from showing their test to students in other sections so the test questions don't get out into the wild. I know that students who are driven to share their work (i.e. cheat) will do so by taking screen shots or some other method, but this might stop the "casual" cheater.

williamstein commented 5 years ago

This could be challenging to implement, since it is impossible to build on top of our current security model. What we could do instead is have a special complete project just for this particular assignment, and remove the student from the project after the homework is collected -- that fits the security model, and would solve your problem.

profbrady commented 5 years ago

That could work. Currently I am collecting individually from every student in particular section then running a script that deletes the assignment folder for all students. I then assign for the students in the next session, collect, and delete the folder for everybody again. Probably not the best method, but seems to be working okay today.

On Mar 7, 2019, at 2:06 PM, William Stein notifications@github.com wrote:

This could be challenging to implement, since it is impossible to build on top of our current security model. What we could do instead is have a special complete project just for this particular assignment, and remove the student from the project after the homework is collected -- that fits the security model, and would solve your problem.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/sagemathinc/cocalc/issues/3663#issuecomment-470653879, or mute the thread https://github.com/notifications/unsubscribe-auth/APSHU89PgqTtp6psEDBWzOSdh8mIYkyLks5vUWNRgaJpZM4bjwVe.

williamstein commented 5 years ago

that deletes the assignment folder for all students.

If they really want to, they can just click the "Backups" button, and navigate to the snapshot of the folder before you deleted it. Alternatively, they can recreate the file, then use timetravel to go back to when it wasn't empty.

profbrady commented 5 years ago

Yes they could, but since I haven’t explicitly shown then how to do that, most would not think of it. Like I said, those willing to find a way to copy/cheat probably will. I am trying to make it “out of sight, out of mind.”

On Mar 7, 2019, at 2:36 PM, William Stein notifications@github.com wrote:

that deletes the assignment folder for all students.

If they really want to, they can just click the "Backups" button, and navigate to the snapshot of the folder before you deleted it. Alternatively, they can recreate the file, then use timetravel to go back to when it wasn't empty.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/sagemathinc/cocalc/issues/3663#issuecomment-470663911, or mute the thread https://github.com/notifications/unsubscribe-auth/APSHU98_hNiK1nbIQYV4rqf3Ysu1eRzSks5vUWoigaJpZM4bjwVe.