Media lesson & interactive video accessibility

[FayCross]

Screen reader accessibility:

There is no way for screen reader users to know when new content is added to either of these pages as no announcements are made. Not sure what the best way to announce changes would be as if there is a video playing (& it doesn't pause on content change) then any screen reader messages would be played over the top of video audio.

Keyboard accessibility:

Should focus be automatically taken to new content on the screen? I have attempted to do this on the interactive video page but it works inconsistently,
On interactive video page, answering any MCQs via the keyboard will play/pause the video as the keyboard 'clicks' seem to propagate to underlying video in a way that mouse clicks don't.

These issues will be noted in the updated accessibility statement but it would be good to decide what the accessible versions of these pages would look like so we can improve in the future.