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Lesson 11 ยท Activity 03

WCAG Check on AI-Generated Content

AI-generated content fails accessibility in predictable ways. In this lab you'll audit a sample AI-made module against WCAG 2.2, flag every gap with a priority, and fix the most critical failing element โ€” the pre-publish habit that keeps your materials usable by every student.

Work through it

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The sample module to audit

A colleague generated this with AI and is about to publish it:

Your audit

ElementWCAG principleGap & priority & fix
Lecture summary (dense reading level)
Images with alt="image"
Table with no header markup
Rubric: grey text + color-only pass/fail

Saved automatically on this device.

Reveal model answer
ElementPrincipleGapPriority / fix
Images alt="image"PerceivableNon-descriptive alt textHIGH โ€” write descriptive alt for each chart/diagram
Rubric grey #BBBBBB on whitePerceivableContrast ~1.9:1, fails 4.5:1HIGH โ€” darken text to meet 4.5:1
Pass/fail by color onlyPerceivable / UnderstandableColor is the only cueHIGH โ€” add a text/icon label, not just red/green
Table without header markupRobustScreen readers can't associate headersMEDIUM โ€” mark the header row (th/scope)

Most critical fix: the rubric uses color alone and fails contrast. Darken the text to a passing color and add an explicit "Pass" / "Needs work" label beside each color cue, so the meaning survives for colorblind users and screen readers. (The summary's reading level is also a real Understandable issue โ€” ask the AI to simplify.)

Your reusable pre-publish checklist (copy and keep):

Before publishing any AI-generated content to students:
[ ] Perceivable โ€” descriptive alt text; text contrast at least 4.5:1 (3:1 for large/bold).
[ ] Operable โ€” works with a keyboard, not just a mouse.
[ ] Understandable โ€” logical heading order; reading level fits the students.
[ ] Robust โ€” real headings and table headers so screen readers can parse it.
Takeaway: Most failures came straight from the AI's defaults โ€” generic alt text, low contrast, color-only cues. That's exactly why a quick four-principle pass before publishing is non-negotiable for AI-generated content.