PresentationTube is a non-profit that has offered a totally free service to teachers for numerous years. That service is the ability to record video presentations based upon PowerPoint pdfs and files. Just recently, PresentationTube launched a Chrome extension that lets you develop video lessons in your web internet browser..

PresentationTubes Chrome extension will let you record while talking over your PowerPoint slides or a PDF. You can tape-record with your webcam switched on or you can pick to just tape-record your voice discussing your slides or PDF. While youre recording you can draw on the screen, add text notes to the screen, and emphasize text on the screen..
When you have completed recording a discussion with PresentationTubes Chrome extension you can publish it directly to the PresentationTube website where you can then release 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 could be an excellent one for anybody who is looking for a brand-new, simpler method to create video lessons based on their existing slides. Regrettably, it just deals with PowerPoint or PDFs at this time. Ideally, 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.