Install the Google Teams add-on

In your Google calendar, open the right panel and select the plus sign.
If the panel is hidden, click on the chevron (<) in the lower-right corner to make the panel appear.

The Google Workspace Marketplace opens.
Enter teams in the search field and select the Microsoft Teams meeting add-on.

Select Install and then select Continue on the permission screen.
Select a Google account on the next screen.

The Teams meeting add-on appears in the sidebar.

Log in to the Teams add-on.
Select Log in, use your ISB email and password if asked, and then select Authorize Access.