If this class involves video projects you will never be required to show your face. If you do a group project all group members must consent before a video upload. Any group member has the right of refusal. You can email firstname.lastname@example.org if your would like to ask for a video removal without letting your other group members know.
Never require anyone to show their face or record their voice for an #openpedagogy class or #oer research. Some may be from marginalized community and fear immigration. Many, and this falls along gendered lines, simply do not want their face recorded. This anxiety can impact learning.
For students taking the class in the open every effort will be made to ensure learning activities are accessible. We will try to remember our "alt" tags and providing text based alternatives to video and screencast tutorials.
We may not know best practices for accessibility on the web. If you find something we could do different please let us know.