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

PresentationTubes Chrome extension will let you tape while discussing your PowerPoint slides or a PDF. You can record with your cam switched on or you can choose to simply tape your voice discussing your slides or PDF. While youre taping you can draw on the screen, include text notes to the screen, and emphasize text on the screen..
When you have ended up recording a discussion with PresentationTubes Chrome extension you can upload it directly to the PresentationTube website where you can then publish it publicly or keep it unlisted. Just Like Google Docs, if you make your PresentationTube unlisted then only individuals who have the direct link to it can view it..
Applications for Education.
PresentationTubes Chrome extension might be a great one for anybody who is searching for a brand-new, much easier way to produce video lessons based on their existing slides. Sadly, it only deals with PowerPoint or PDFs at this time. Hopefully, in the future there will be assistance for Google Slides. In the meantime you can constantly download your Google Slides as PPT or PDF to use with PresentationTube.