Q: The tutorial groups are not provisioned. Is there any any bulk upload feature to add members into Teams?
A: No, there isn't a bulk upload method. If you are creating new teams for each tutorial group (so that you can use private channels for sub-group projects), consider sharing the team link (require owner approval) or generate join code (without approval) to invite the students: https://support.microsoft.com/en-us/office/invite-students-or-educators-to-join-with-a-link-or-code-acb1bd4d-813c-4592-9aa0-ca95528960d9