Premier/Greenscreen Pop Quiz

I filmed the green screen part but it would not send to me when we were doing the pop quiz in class. However, I have two other greenscreen effects in the video and know how to incorporate it.

https://video.wixstatic.com/video/06164b_f1e329406d1b439d96e05f7acb14cc0a/720p/mp4/file.mp4

https://video.wixstatic.com/video/06164b_30b1a75e77934630a62a85586c404cbb/1080p/mp4/file.mp4