Name what the learner is meant to demonstrate
Consider a fictional assignment: compare two explanations for a local environmental change and justify which is better supported. If the learning goal is reasoning from evidence, requiring a polished video may introduce a second, quite different task. Filming, editing and uploading can become the obstacle before the reasoning is ever seen.
Write the learning goal without naming the software or final format. Then ask which parts of the format are necessary to assess that goal. Sometimes the medium is the point: a pronunciation exercise needs speech, and a filmmaking assignment needs film. The aim is to identify accidental barriers, not to remove the substance of the task.
Review three parts of the experience
CAST’s Universal Design for Learning framework organizes design around engagement, representation, and action and expression. These are prompts for considering learner variability. They are not a reason to label each student with one fixed ‘learning style.’ Our example below applies the framework as a planning exercise; it does not report a classroom trial.
For engagement, explain why the comparison matters and where students have a choice. For representation, provide the underlying information in a form that can be read and navigated, rather than only as a photographed worksheet. For action and expression, consider whether a short written argument or a structured audio response could demonstrate the same reasoning. Apply the same evidence criteria to each permitted option.
Give images a job and a useful alternative
A decorative cover and a chart carrying evidence serve different purposes. W3C’s images tutorial distinguishes informative, decorative and functional images. Describe information a learner needs when an image provides it; use an empty text alternative when an image is purely decorative. A complex chart may need its data or explanation in adjacent text.
For our fictional assignment, a photograph of a riverbank might need a description of the visible change, while a logo in the margin does not supply evidence. Avoid putting the whole instruction sheet inside an image. The reader should not have to infer the task from tiny lettering or depend on a particular screen size to read it.
Follow the work all the way to submission
An accessible document can still end in an inaccessible upload form. W3C’s forms tutorial recommends labels that identify controls and are associated with them in the markup. A visible instruction such as ‘Upload your response’ needs a corresponding, understandable control; placeholder text alone is an unreliable substitute for a persistent label.
Try the student route from the assignment link to the final confirmation. Can the page be used with a keyboard? Is focus visible? Can instructions be enlarged without disappearing? Does a failed upload explain what to do next? These checks help find obvious barriers. As W3C cautions, quick checks do not establish full accessibility compliance.
Make a small, reviewable change
Choose one barrier that the teaching team can address before the next assignment. Keep the original learning goal and marking criteria visible. Record the change in concrete terms: ‘Instructions are now available as structured text alongside the printable worksheet,’ rather than ‘the task is inclusive.’
Ask learners what still prevented them from starting or finishing. Avoid treating the absence of complaints as proof that the design worked. A quiet student may have completed the task with substantial help, abandoned the submission, or never seen the feedback request. Follow-up should investigate the route through the task, not ask learners to disclose a diagnosis.
Sources and further reading
- CAST: Universal Design for Learning
- W3C WAI: Images tutorial
- W3C WAI: Labeling controls
- W3C WAI: Easy checks, a first review of web accessibility
Sources checked 6 November 2026. Exercises and scenarios are editorial suggestions, not reported fieldwork.
