PresentationTube is a non-profit that has provided a complimentary service to instructors for several years. That service is the capability to record video discussions based on PowerPoint pdfs and files. Just recently, PresentationTube launched a Chrome extension that lets you create video lessons in your web internet browser..

PresentationTubes Chrome extension will let you tape while talking over your PowerPoint slides or a PDF. You can record with your web cam switched on or you can select to just tape your voice talking over your slides or PDF. While youre tape-recording you can make use of the screen, add text notes to the screen, and emphasize text on the screen..
When you have actually finished taping a discussion with PresentationTubes Chrome extension you can submit it straight to the PresentationTube site where you can then release it publicly or keep it unlisted. Just Like Google Docs, if you make your PresentationTube unlisted then just individuals who have the direct link to it can view it..
Applications for Education.
PresentationTubes Chrome extension could be a good one for anybody who is trying to find a new, much easier way to develop video lessons based on their existing slides. Sadly, it only works with PowerPoint or PDFs at this time. Hopefully, in the future there will be assistance for Google Slides. In the meantime you can always download your Google Slides as PPT or PDF to use with PresentationTube.