Description: Include an expand button to show additional content or expand graphics.
When to Use: Expanding images show the details of a graphic that had to be minimized to be shown on the same page as the topic text or to show additional text that is not required reading. Because not all students explore interactivity on a page, text that is required reading should always be shown directly on the page.

Description: Colored boxes or icons that appear regularly throughout a lesson or course. In the example below, the responsibilities of the Systems Engineer Role appears periodically throughout the discussion of a technical process.
When to Use: This is very useful on paper or on screen when there are repeating ‘types/categories’ of information on multiple pages. Keep the boxes and icons simple so that they can be easily recognized. Try to limit the use to 2-3 different types of information. Too many and the student will start to confuse one with another.
