Sketchnoting is a form of notetaking where the person taking notes draws an image. The visualization is meant to tie concepts together and can be made using a combination of text and pictures. The active process of creating the sketch note along with the visual representation of the concepts helps the learner make connections and remember the content. Beyond paper and pencil, any tool that provides a drawing feature could be used to create a sketchnote including but not limited to the following:
Check out this video from educator and author Carrie Baughcum describing sketchnoting.