Abstract
This article recorded the lecture on English phonetics by online lessons during the COVID-19 pandemic and considered the educational effects from the record and the students' questionnaire results. In the questionnaire, students answered their subjective feelings of learning effects and burdens on ten items such as teaching materials, learning activities, and assignments using a scale of 1 to 5 and provided free-form answers. The results showed that the lecture video had a very high sense of learning effect and was highly effective from the correlation with the feeling of burden in their learning. On the other hand, group activities were the most burdensome. However, the students needed to interact and have collaborative learning with their classmates to continue their motivated learning. It suggests that online lessons need both on-demand style and streaming lessons. Based on these results, this article proposed effective lectures on English phonetics as online lessons.
https://ror.org/041bf1s37 
