When developing a course using the first principle of Universal Design for Learning, there are three specific guidelines to assist us. The first, Perception in many ways overlaps with creating accessible content.
Criterion 2 of this guideline advocates that we provide alternatives to perceive information.
Images, info-graphics, and video can be a superior way to presenting content. This is particularly true when demonstrating relationships, such as between actions or events. A picture can stay 1000 words, but not if you cannot see it. These presentations can abandon those with visual disabilities. To ensure equitable access, offer non-visual learners alternatives, such as:
- Providing
descriptions (text, spoken,
or both) for all images, graphics, tables, and other visual content
- Providing
auditory cues for key concepts
and transitions in visual information
- Providing
physical models (when
possible) to convey perspective or interaction
- Adding
a primacy to supplying textual representations that can easily be
converted to text-to-speech.
The malleable nature of text on the web has an advantage of permanence
and flexibility. Having Closed Captions, a transcript, or visual
description should always be included. Offering a text-to-speech
option alongside the text further benefits the
learners.
Text is a special case of visual information. For those with
visual impairment, how the text is presented is critical. Be sure to use
accessibly standards to the text you employ, such as those provided by NIMAS or WCAG. There is an advantage to text in that many
tools can easily work with it to provide alternative means of communicate. Minimally, a text-to-speech option should be
available for learners.
Sound is a very effective teaching tool, and the addition to sound to video, or text, can
accelerate learning. However, information solely conveyed with audio is not
equally accessible to all learners. This is more so with learners with
hearing disabilities. Ensure that all learners have access to information by:
- Providing written transcripts of
closed captions to video or audio clips
- Provide visual diagrams, charts,
and notations to sound (such as music)
- Offer visual analogues, such as
symbols or images.
- When no voice is to be transcribed,
offer visual/emotional description of audio, such as musical clips.
Finally, one should note that there are several new
technologies that can convert to text to speech. However, research reveals that learners
prefer and thrive with human audio over computer generated speech (Mayer,
2009). Given the option, you should
favor creating or using human audio to both increase learning and for
generating a more welcoming learning environment.
By following these suggestions, your course will assist students communicating and expressing their knowledge, as well as being in line the Principle of Representation in the Theory of Universal Design for Learning.

