Below are screencasts that will help you navigate through various types of programs.
Browser related screencasts
How to organize your bookmarks bar into folders
Google Browser login
Adding Extensions
Google classroom screencasts
Creating a class in google classroom & having students join a classroom
Gmail screencasts
Applying labels and filters to email
Destiny (media center book look-up)
How to use Destiny
Miscellaneous
How to reserve on schedulet
Deleting reservations on schedulet
How to SchoolDude
How to update your teacher webpage
YouTube
How to make a video available when it says it is unavailable