a teacher stands in front of a classroom with her arms crossed

in the first frame, a young woman wearing glasses is standing in a classroom with her arms crossed. the next frame shows the same woman standing in the same position. in the following frames, the woman standing in the same classroom with different students standing around her. in the last frame, the woman standing in the classroom again with her arms crossed, and there are several students seated in the background. the description is brief, but it gives a good idea of what is about.