To participate in an online workshop, click on the session title in the calendar. You should then be able to see the URL to access that session in the event description.
For guidance on using BlackBoard Collaborate go to the Help pages on Blackboard at https://eatsupport.tees.ac.uk/staff/knowledgebase/student-quick-start-guide-to-blackboard-ultra/
To check your audio settings for Collaborate before the session go to https://help.blackboard.com/Collaborate/Ultra/Moderator/Moderate_Sessions/Audio_and_Video
Guidance on using Microsoft Teams is available from Digital Futures at https://extra.tees.ac.uk/HelpCentre/SelfHelp/Documents/Software/Teams%20Meetings.pdf
Various help guides are available from the Microsoft website at https://support.microsoft.com/en-us/office/microsoft-teams-video-training-4f108e54-240b-4351-8084-b1089f0d21d7