Sharing your screen in Zoom is a useful way to relay information like powerpoints, excel files and even video clips from youtube.
1. With the meeting open, click "Share Screen". You can select specific windows you'd like to share, or share the entirety of your screen.
2. Click "Share"
When sharing your screen, it will be the dominant view of everyone attending the meeting. No one will be able to overtake unless the host pins and spotlight's another user's video.