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

PresentationTubes Chrome extension will let you record while discussing your PowerPoint slides or a PDF. You can record with your cam turned on or you can choose to just record your voice talking over your slides or PDF. While youre tape-recording you can make use of the screen, include text notes to the screen, and emphasize text on the screen..
When you have finished recording a presentation with PresentationTubes Chrome extension you can submit it directly to the PresentationTube website where you can then publish it openly or keep it unlisted. Much like Google Docs, if you make your PresentationTube unlisted then just people who have the direct link to it can see it..
Applications for Education.
PresentationTubes Chrome extension might be a good one for anybody who is trying to find a brand-new, easier method to develop video lessons based on their existing slides. It only works with PowerPoint or PDFs at this time. Hopefully, in the future there will be support for Google Slides. In the meantime you can constantly download your Google Slides as PPT or PDF to use with PresentationTube.