There are four different formats in the folder - course, article, video and exercise. Serlo.org offers these four learning formats where you can contribute content.
Course: What you are doing right now is a course. The content is structured step-by-step with an overview on the left side.
Article: An article is one page which summarizes the most important information of a topic (Methods, Tools, Theory etc.).
Video: A video is visual content which is implemented from youtube. It can be structured individually.
Exercise: Exercises are problem tasks which are related to the topic and always offer sample solutions.Go check out the formats if you like!
