After recording a video, you will generally need to post it online, so your classmates and the teacher can view it. Visit this page for support resources:
How to Upload a Video to YouTube - https://support.google.com/youtube/answer/57407?hl=en;
How to Share a Video from YouTube - https://support.google.com/youtube/answer/57741?co=GENIE.Platform%3DDesktop&hl=en