Using the Google Docs Drawing tool to mark up images
Our example of a way to mark up images makes use of the Drawing feature of Google docs. The drawing tool can be used to create an illustration or sketch from scratch or it can be used to mark up imported images. If our of reference to “marking up” images has been vague, we hope the following video demonstration will make clear the type of activities we believe teachers and students should know how to perform. They should be able to add arrows to point at something or circle something to bring a particular feature to the attention of a viewer. They should be able to label what the arrow or circle differentiates. This is not about creating beautiful images, but marking on images to explain and inform.
Tutorial - Marking up images in Google docs [video]