Companies today are always looking for ways to make software and tools available to all individuals. Microsoft has always been innovative in their technology and they have shown this again with Accessibility Checker. This feature is similar to spell checker. A teacher like yourself can go in and run Accessibility Checker to see if there are any potential problems that would make it difficult or impossible for an individual with a disability to access the content. After the document and worksheet is checked it will mark issues as either error, warning or tip. Some or none of the suggestions given can be changed. When an issue is found it will tell you what may make the information in accessible and how to fix it.
Here are the steps on how to use Accessibility Checker:
Use Accessibility Checker
Click the File tab.
Click Info.
Under Prepare for Sharing, an alert will appear if Accessibility Checker has detected any potential accessibility issues.
If you want to view and repair the issues in your file, click Check for Issues, and then click Check Accessibility.
You are returned to your file where the Accessibility Checker task pane is open, showing the inspection results.
Click on a specific issue to see Additional Information and steps you can take to fix or revise the content.
Note If the content in the additional information pane in the bottom of the Accessibility Checker is hard to scroll because you can't use the mouse, press F6 to focus on the task pane, tab until the focus is in that area, and then try to scroll with the keyboard.
(Steps found on http://office2010.microsoft.com/en-us/starter-help/accessibility-checker-HA010369192.aspx)