Explanation:
1. make sure you've saved the video to your iPhone .
2. open the classroom app and locate the class you are to summit it
3. then, click the assignment comment and you see add an attachment.
4. it will bring a list, click files.
5. then in the next list, click photo.
6. then the list of the videos and pictures in your phone will show, click the video.
7. wait , because it might take a few minutes to upload.
8.after that, click hand in.
9. then, it will show a mark that the video has been handed in.
