在线下教学中，教师可以采用小组讨论等方式让学生们进行交流，也可以采用提

In offline teaching, teachers can use small group discussions and other methods for students to communicate, and they can also use questions and raise their hands to answer the communication between teachers and students. This is still the case in online teaching.

In online teaching, teachers can use group discussions and other ways to let students communicate, or they can use questions and hands to answer the way of communication between teachers and students, online teaching, still so

In the off-line teaching, teachers can use group discussion to let students communicate, and can also use the way of raising hands to answer questions to communicate between teachers and students