Learning to program is accepted as being difficult, and different approaches have been implemented in classes to solve this issue. Here, we propose a collaborative learning method that applies the mob programming technique and utilizes a student mentoring method. A workshop was conducted with middle school students that resulted in the completion of a project and positive impressions of this method. In the feedback, students recognize the completion of the project was due to the help of the student mentor and communication between the peers. Our method allows cooperative behavior between experienced and beginner students. We plan to continue with this approach and to investigate the learning effectiveness of our method.