Use your browser, “Ms Edge” is probably the best, and navigate to www.office.com
Sign in with your Pecanwood credentials . . . for example . . .
sd12345678@connect.edu.za, This is also your official Pecanwood email address.
Type in your password.
The browser will bring up your Ms Office account . . . on your desktop at school, your desktop at home, your laptop and your iPad. From here you can access any Ms product, including Outlook and Teams.
Get the app . . . access Teams without using the browser.
The app for your smart phone.
Go to the app store and download Microsoft Teams for your phone. This way you can login to Teams using your SD number and password.
The app for all other devices
PC, Apple Mac, tablet, OS X 10.11+, Windows, Linux, Android
Download aka.ms/GetTeams
Even more detailed guide if you need extra help.