抄録
Ten years have passed since 2015, when large lectures were started for high school age students at national institute of technology. We introduce some of the innovations in implementing large lectures on chemistry and physics. The situation over the past 10 years is reviewed, including changes in grades, class evaluation questionnaires, and opinions from parents and other teachers. The result is the same as the conclusion reached ten years ago. We thought that an effective approach would be to offer courses with a large lecture where possible, and use the remaining time for small-group lectures and supplementary classes. The fact that the conclusion is the same as that of 10 years ago probably means that large lectures at National Institute of Technology are on track and there are no major problems overall.