PresentationTube is a non-profit that has actually provided a free service to teachers for several years. That service is the ability to record video presentations based upon PowerPoint pdfs and files. Recently, PresentationTube released a Chrome extension that lets you produce video lessons in your web browser..

PresentationTubes Chrome extension will let you record while talking over your PowerPoint slides or a PDF. You can record with your web cam switched on or you can pick to simply tape-record your voice discussing your slides or PDF. While youre taping you can make use of the screen, include text notes to the screen, and highlight text on the screen..
When you have ended up recording a presentation with PresentationTubes Chrome extension you can upload it straight to the PresentationTube website where you can then publish it openly 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 see it..
Applications for Education.
PresentationTubes Chrome extension could be a good one for anyone who is trying to find a brand-new, easier way to create video lessons based on their existing slides. Sadly, it just 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.