CMU is required to comply with
federal accessibility standards
and as a faculty member, there are ways you can support adherence to these standards. Below are information and helpful tips on how to make your course materials more accessible. This is not meant to be an exhaustive list of compliance standards, but rather to provide an introduction to easy-to-adopt measures.
Use color sparingly to ensure maximum viewability.
- Screen readers do not recognize color: don't use color as a distinguishing feature within text.
- Use color selectively. Overuse of color can be confusing and distracting.
- If you must use color, ensure sufficient contrast between text and background colors. Try this
Color Contrast Checker to verify your selections.
- Avoid use of red or green to show emphasis along with these other
top colors color-blind students have difficulty seeing.
- Use these standard, easily legible fonts in 12 point or larger size.
- Use bullets or numbering to organize content (this also helps increase readability).
- Do not underline text, which is suggestive of hyperlinks, and can confuse readers.
- Leave ample white space.
- Use paragraphs to break up large blocks of text.
Using an appropriate structure for documents will ensure accessibility.
uniform heading structure headings organize content and provide the ability to directly jump to content. Keep headings simple.
heading style tags (Heading 1 once per document, Heading 2 for main headings, Heading 3 - Heading 5 for subheadings).
- Run the
Microsoft Accessibility Checker (PC) on completed documents.
For a Mac, use the accessibility checker built into each software program.
- Accessibility for PDF documents can be tricky - there are right ways and wrong ways to export a document to PDF. To ensure this is done correctly, from the Microsoft Word File menu:
- Select Save As Type -> PDF
- Select "Options" and ensure "Documents Structure Tags for Accessibility" is checked
Images & Complex Visuals
Screen readers use alternative text (alt text) to provide users with information about images and complex visuals (tables, charts, graphics, etc.). When incorporating these items into your documents, follow these accessibility guidelines:
Provide brief alternative text descriptions (ALT text) for all images.
- For complex visuals and detailed informational images, a longer text description may be needed, which can be linked to in Blackboard from the "Advanced" tab when inserting an image.
- Do not enter "Image Of" as assistive tools already know the object is an image. Be concise, clear, and descriptive. Hover your mouse over the picture to see an example of an alt text.
- Do not use the same alt text for every image (e.g. "image illustrating associated text").
- Use lists instead of tables. Tables are accessible but more difficult to navigate and understand.
- If tables are desired, use the
Creating accessible tables in Blackboard instructions.
Keep tables simple.
Avoid tables embedded within a table, merged cells, and empty cells.
Organizing Your Blackboard Course Shell
Course Menu Buttons
- Use a high contrast between text color and background color (do not use patterned buttons).
- Remove or hide buttons/tools that are not used.
- Implement consistent navigation and menu-structure for students to easily navigate the course.
- Follow the 3-click rule; no more than three clicks to get to the needed information.
- Minimizing page scrolling increases ease of accessibility via keyboard navigation.
Multimedia & Video
When recording multimedia content for your course, keep the following accessibility guidelines in mind:
- Be descriptive when referencing images on slides.
- Add closed-captioning using Panopto's Auto-Speech Recognition (ASR) capability. ASR is a great starting point so all you need to do is edit the machine captioning to be 100% accurate using Panopto's online caption editor.
- Provide a transcript as a text-only option for your students.