G Suite administrators can apply the following settings for signed-in users.
- Strict Restricted YouTube access.
- Moderate Restricted YouTube access.
- Unrestricted YouTube access.
Administrators can also apply filtering settings for users who aren't signed into G Suite. This can be done on your network and or on managed devices. More information is available here.
Once you have found a video that you want to show in your classroom, consider using one of these five methods to avoid showing "related" content next to the video.