If you would like to choose to create your own teams meetings with other colleagues, you have the liberty to do so. But please let me be clear when I say that this must be a safe environment and meetings must follow honor code at all times; copying information from one another is absolutely prohibited and if found in violation, grounds for attendance to an honor code committee hearing or even dismissal could take place.
You must follow these steps below to create a team meeting among your colleagues:
1) Login to your Teams App
2) Go to Calendar on the left-hand side tool bar
3) Right hand corner, select New meeting
4) Add meeting title, attendees, date, time, etc.
5) It should show up on your calendar
I hope this helps!