As the COVID-19 epidemic began to ravage the world in 2019, Taiwan’s educational environment was also affected by the epidemic, forcing teachers and students to have no choice but to enter remote classrooms and use online courses and digital carriers for teaching activities. As the epidemic spreads, the duration of online teaching has also been lengthened. As of this writing, the school where the author teaches has implemented online teaching for over a month several times since the outbreak. It not only challenged the teachers’ teaching design and media application skills, but also tested the students’ ability to adapt to mobile learning situations and theirattitude towards non-traditional learning modes.

Keywords :Self-efficacy, online learning strategies, learning effectiveness, Taiwan, post-epidemic era