PresentationTube is a non-profit that has supplied a free service to teachers for several years. That service is the capability to record video presentations based on PowerPoint pdfs and files. Just recently, PresentationTube launched a Chrome extension that lets you produce 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 tape with your cam switched on or you can choose to simply tape-record your voice discussing your slides or PDF. While youre tape-recording you can draw on 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 publish it straight to the PresentationTube site where you can then publish it openly or keep it unlisted. Much like Google Docs, if you make your PresentationTube unlisted then only people who have the direct link to it can view it..
Applications for Education.
PresentationTubes Chrome extension might be a good one for anybody who is looking for a brand-new, easier method to produce video lessons based on their existing slides. In the meantime you can constantly download your Google Slides as PPT or PDF to use with PresentationTube.