Student enabled an accessibility feature by accident and unsure how to disable.
Open settings by clicking on the system tray (bottom right) and clicking the gear icon.
Click Advanced and scroll to Accessibility
Select the Accessibility Feature that needs to be disabled
For a magnified portion of the screen on the top that is locked, select Docked Magnifier
If the entire screen is magnified select Full Screen Magnifier"
If colors are inverted select High Contrast Mode
For an enlarged cursor select Show large mouse cursor