Your ISKL Teach Team has made it very easy for you to update software and download apps on your new MacBook Pro. At the top of your screen you will see an ISKL logo like the one below. If you click on it and then click Install Software you will see what you can install from the kiosk.
Please note that if you update MacOS from the kiosk it takes some time and runs in the background. Your laptop will restart when the update is done. It is recommended to do MacOS updates when you are finished using your computer for the day.