The fundamental reason why the teachers chose the format of a Wikipedian article is the exercise in clarity that it requires. Unlike writing an 8-10 pages article, a Wikipedian contribution requires students to have a strong ability to write in a clear, concise, and short manner. To succeed, they must make a reasoned choice of an interesting topic and relevant material.
The students were enthusiastic during the project, especially when publishing their contributions. The fact that they were involved in a more concrete project than usual was a source of motivation for them. Students were particularly encouraged by the fact that they were read by readers other than teachers.
Teachers who have been able to implement this format in their courses recommend that students never delete words or lines from existing Wikipedia entries, but rather add new content.
The key to a format organized around writing for the Wikipedia encyclopedia is the tutorial on the rules and tools of writing, which should be put forward at the beginning of the course. As the format exposes the writing activity to other members of the Wikipedia community, students should be prepared for possible feedback from the community.