Video Not.es can be found in the Chrome store as a free app (for Drive) and a free extension (for Chrome). It can be used with YouTube, Vimeo, Khan Academy and other videos. It is a great way for teachers to create a set of notes at set points in the video (directions). Video Not.es allows for collaboration and is a great way to flip lessons, provide extra review or even just helping a student who was absent from class that day.
Google Drive - Downloading as a PDF
Google Documents, Slides, and Sheets can be downloaded as PDF files. So, if you have something in Google Drive that you need to download and share with someone but don't want it altered you can download as a PDF file. Just click on "file" then on "download" and select "PDF Document". Directions.
https://pdf-pro.com/online-pdf-apps/en/speechator/Need a text with audio? One way that can be done is to create a document of the text that needs an audio without images, tables, etc and convert it to a pdf file (see Google Drive - Converting to a PDF above if using Google Docs). Then upload the pdf file to ePapyrus and it will create an audio file of the pdf file.
Are you looking for something to challenge yourself or your students? Consider coding. It is a great way to work on problem-solving. This article on LifeHacker has a link to another of their articles that talks about why code and it also explains about Google's free coding materials. Google's new coding materials can be found at Google CS First. (If you like puzzles give yourself more than a few minutes when you start playing with the different websites and apps.)
Hopscotch is a great way to learn coding without worrying about learning the syntax of coding. Hopscotch has a free iPad app that helps students learn how to code. You just drag and drop different blocks of commands to make your character do things. It is possible to do math problems and stories with Hopscotch .