I need a (possibly simple and web-oriented) open-source software to ask a class of students some "open" questions (i.e., with open answers, not a "quiz"...), to be able to evaluate the level of their knowledge about a specific topic.
It doesn't need to be account-based, I just need to some way link every answered form to a student's name (I trust my students :-)
For answers evaluation I think to a simple table (".ods", ".csv", ".xml"...) with answers, one row per student
Exams will be timed, of course, but not so strictly (students will have to answer before next week, for example)