Peer instruction units are short units lasting approx. 10 minutes that are carried out once or several times during a lecture. The starting point is a multiple-choice question that is addressed to the students via the projector. Typically, this is a comprehension question on current material that addresses a topic that students find difficult to understand or about which there are often student misconceptions. Students are given a short time to think about the correct answer on their own and then vote on it anonymously. The result of the vote is usually displayed or announced. This is followed by 3-5 minutes in which the students discuss the question with the person sitting next to them, exchange arguments for and against the various possible answers and try to identify errors in their own or their fellow student's reasoning. This time is therefore a time of active learning for the students. A second vote concludes the discussion phase. Now the correct answer is usually chosen more often, which documents the students' learning process. Afterwards, both the correct answer and the misconceptions underlying the incorrect answers are discussed in plenary.
