No, not all teachers use videos in class. Some schools don't have the technology or resources needed. Also, some teachers prefer traditional methods, like lectures and textbooks. They might worry that videos could distract students. In some subjects, hands-on activities are more important, so videos aren't used as much. Some educators think videos should only support, not replace, direct teaching.
不,不是所有老师在课堂上都使用视频。有些学校没有所需的技术或资源。此外,有些老师更喜欢传统的方法,比如讲座和教科书。他们可能担心视频会分散学生的注意力。在某些学科中,动手活动更为重要,因此视频使用得不多。一些教育工作者认为视频应该只是辅助,而不是替代直接教学。