Why is the ”flipped classroom"?Much lovedPay attention to it? This is because the "flipped classroom” has the following distinctive characteristics：

First, the instructional video is short and dapper.

Whether it's a math tutorial video by Salman Khan or a chemistry subject tutorial video by Jonathan Berman and Aaron Sams, a common feature is shortness and dapper. Most videos are only a few minutes long, and the longer videos are only ten minutes long. Each video is aimed at a specific problem, has a strong pertinence, and is more convenient to find; the length of the video is controlled within the time range when the student's attention can be relatively concentrated, in line with the characteristics of the student's physical and mental development; videos published through the Internet, with pause, playback and other functions, you canSelf-control is conducive to students' independent learning.

Second, the teaching information is clear and clear.

A distinctive feature of Salman Khan's instructional video is that the only thing that can be seen in the video is his hand, constantly writing some mathematical symbols, and slowly filling the entire screen. In addition, it is a voice-over that cooperates with the writing to explain. In the words of Salman Khan himself: “This way. It doesn't seem like I'm standing on the podium to give you a lecture. It makes people feel intimate. It's like we sit at the same table, study together, and write the content on a piece of paper. ”This is the difference between the teaching video of ”flip classroom" and the traditional teaching video. The teacher's avatar that appears in the video, as well as the various furnishings in the classroom, will distract students, especially when students are learning on their own.

Third, reconstruct the learning process.

Under normal circumstances, students' learning process consists of two stages: the first stage is “information transmission”, which is achieved through the interaction between teachers and students, students and students; the second stage is “absorption and internalization”, which is done by the students themselves after class. Due to the lack of support from teachers and the help of peers, the “absorption and internalization” stage often makes students feel frustrated and lose their motivation and sense of accomplishment in learning. “Flip the classroom" reconstructs the student's learning process. “Information transmission” is carried out by students before class. The teacher not only provides videos, but also provides online tutoring; “Absorption and internalization” is done through interaction in the classroom. Teachers can understand students' learning difficulties in advance and give effective tutoring in the classroom. Mutual interaction between classmatesCommunication is more helpful to promote the process of internalization of students' knowledge absorption.

Fourth, review and test is convenient and fast.

After watching the instructional video, whether the student understands the content of the study, the four to five small questions immediately after the video can help the student conduct timely testing and make judgments on their own learning situation. If you find that a few questions are not answered well, students can go back and look at them again, and think carefully about what went wrong. The students' answers to questions can be aggregated and processed through the cloud platform in a timely manner to help teachers understand the students' learning status. Another advantage of instructional videos is that they are easy for students to review and consolidate after a period of study. The follow-up of evaluation technology enables students to obtain empirical information in related aspects of learning, which is conducive to teachers to truly understand students.