"I just started playing with the apps that I learned about during ISTE18 in Chicago. One that I'm really drawn to is an updated version of an old Apple app, Keynote. As of spring I learned from @karlyb that keynote had added a drawing feature to their iPad app. As I was searching this topic on twitter I found Mrs. Kellenberger's twitter feed showing student drawings like this one made using Keynote. She shared her tutorial that she made for her students (below) demonstrating a contour line drawing over a photo."
Via John Evans
I don't use keynote, but I think this is fascinating! I'm actually trying to transition from PPT to GSlides. But it will take a long time - thousands of slides!