Canva creates amazingly beautiful flyers, posters, and other graphic designs using customizable templates and easy click-and-drag editing. One of the best "freemium" graphic design tools on the web, though it does charge for extra images.
Google Drive enables any number of people to edit and collaborate on documents and presentations. Consider using Google Forms to create paperless class surveys. Google Apps for Education offers a comprehensive suit of tools.
Take the headaches, frustration, painfulness out of creating tutorials and just leave with something sparkly that you can serve to your users.
Create beautiful application instructions in under 5 minutes.