Option 1. Work is provided on classdojo, and the teacher records a video talking about it. The same video is sent to all members of the class. 选择1：在ClassDojo上布置作业，并且老师提前录好一段视频。同一个视频发送给全班同学。
Option 2. Work is provided on classdojo, and the teacher is available to discuss the content with students via a video call. 选择2。在ClassDojo上布置作业，教师可以通过视频电话与学生讨论内容。