We utilized online class contents such as practice problems via a web system which provided immediate feedback in alternating face-to-face and remote learning classes. From questionnaire surveys of students, we found the following things. The subjective evaluations of students for the practice problems are consistently high compared to those for remote-based lessons. The best way to self-check students answers in self-study is automated grading, and they desire the immediate feedback that is a feature of the practice problems. However, with the “basic class” students, the rate of students who desire the above in alternating face-to-face and remote learning classes is significantly smaller than the rate of the students receiving the remote-based lessons. Furthermore, students hoped that after COVID-19, their classes would be by blended learning, which is face-to-face classes with VOD, rather than face-to-face classes alone or VOD alone.
