What am I Supposed to do with Cheating by Students?

Today was the fifth day of the spring semester in 2024, also the final day of the first week. I taught just one class today. It was the conversation course for the first-year students. Again, I couldn’t get the power source for my laptop computer. In order to save the energy, I made the computer display as dark as possible. The battery lasted until the end of the class. After the class, I came back to my room straightly. Although I wanted to take a rest, I continued to work. I scored small quizzes that I had assigned the second-year students. And then, I found a problem.

In the last semester, I realized that my students of listening course didn’t prepare before the class. They came to the class without listening to audio materials of the textbook. So, I decided adopting new way to make my students listen to audio mp3 before the class; first, I upload mp3 onto Dingtalk to share the listening material, second, students listened to it and take notes about what they listened, and third, at the beginning of the class, I made my students answer to small quiz. I make questions such that a student cannot answer if he/she hasn’t listened to audio materials.

The problem I found was that four students with high points actually didn’t download the mp3 file from Dingtalk. The four were sitting at the same desk with one student. That one student did download mp3 and also got high points. Probably that student’s answers were shared by four cheating students. But I don’t know if that student showed the answers to the four knowingly or not. Every time I found a cheating, I give the student punishment. But not only the cheating student, I also punish the student who helped the cheating. This time I am going to make the points of the four zero. But I need to be careful about how to deal with that one student.