If you have no sound, please check this article.
We have a known issue affecting users on iOS 10 - you may need to press the play button twice to start the video.
If your video or audio player isn't working or appearing, the following steps should resolve the issue:
Clear cache and cookies
Clear your browser's cache and cookies. Instructions on how to do so for various browsers can be found here.
Update your flash player
You can update to the latest flash player by visiting https://get.adobe.com/flashplayer/.
Disable Add-ons and extensions
Try disabling all browser extensions, add-ons, etc. Certain extensions can interfere with your browser’s regular performance and most online material will not have been tested with your specific extension in mind.
Update your browser
Ensure you’re using a browser supported by FutureLearn. Try updating your browser to the latest version. Alternatively try another browser. Whilst this isn’t a solution, check to see whether the problem is specific to one particular browser.