1. Meaning and concept of flipped classroom

Possible Drawbacks to Flip Teaching

No Teacher Is Available During the Video Presentation

One disadvantage of obtaining information from a video with no teacher available is that the student can't ask a question to clarify any information that they don't understand. Teachers in flipped classrooms often encourage their students to write down any questions that they have about the information presented in a video so that they can discuss the problems in the next class.
Students could also check on the Internet or in their textbook for answers to their questions. It might be a good idea for teachers to give students a list of suitable websites related to the topic being studied or a list of relevant pages in a textbook. This will help the students to find reliable information quickly if they need to do so.

Lack of Student Compliance

Another problem may be student compliance. In a flipped classroom, the students need to view the educational videos at night in order to participate in class activities during the day. There is probably a higher commitment to viewing videos at home than to completing conventional homework. Some students may ignore the videos, however, especially if there is no check up done in class to assess whether they watched them. They could watch a missed video at school during class time, but this will slow their progress in a course. The teacher in the video below discusses this problem.

More Potential Drawbacks

No Student Internet Access

Another problem is that some students may not have a computer or Internet access at home. In this case, flip teaching may not work. Some teachers solve the problem by giving students without a computer a handout that covers the material in the video and suggesting that students watch the video on a school computer before or after school. However, this may alienate the students who don't have computers or electronic devices because they are being treated differently from their peers. Using a public library computer could help, but this would require a student to repeatedly go to the library after school hours. Students with a computer at home and no Internet access or with a video player but no computer could be given flash drives or DVDs containing the videos.

Students May Be at Different Places in a Course

If the students in a flipped classroom have to master topics in a specific sequence, they may end up working at different rates. It's important that there is no stigma attached to students working on a topic that others have completed. Teachers need to stress that all students can finish the course requirements and that it's fine if some students need to get more practice in a certain topic before they move on. The best flipped classrooms have a collaborative and supportive atmosphere that is created by both the teacher and the students.
Students who have completed and understood a section of a course can be great helpers for those who are struggling. In addition, the act of explaining a topic to someone else reinforces and clarifies the information in the helper's mind.