What is Pour? - WCAG

POUR-

Stands for Perceivable, Operable, Understandable, and Robust. These principles form the backbone of the WCAG standards and provide a powerful lens for evaluating and improving digital accessibility.

Whether you’re designing a slide deck, creating a worksheet, or curating resources in a learning management system, POUR helps ensure that all students can:

Access the same information
Engage in the same interactions

Enjoy the same educational opportunities as their peers

What Does “Perceivable” Mean?

According to the Web Content Accessibility Guidelines (WCAG), the Perceivable principle is about presenting information in ways that learners can access through different senses.

Consider learners who:

Use screen readers
Have low vision or color blindness
Are Deaf or hard of hearing
Have cognitive or learning disabilities
Learn in noisy or shared environments
Access content on a small screen or mobile device

Key WCAG Guideline Areas for Perceivable

Text Alternatives (1.1): Non-text content like images, icons, charts, and diagrams needs text that conveys the same purpose.
Time-Based Media (1.2): Video, audio, and animations require captions, transcripts, and sometimes audio descriptions.
Adaptable (1.3): Content should remain accessible when reformatted, simplified, zoomed, or read by assistive technology, without losing its structure.
Distinguishable (1.4): Text and other important content must be easy to see and hear, including sufficient color contrast and avoiding reliance on color alone.

The core idea: Perceivable content meets learners where they are, rather than assuming everyone experiences the world the same way.

What Perceivable Looks Like in Education

For educators, designing perceivable content is about ensuring access for every learner, not just compliance. Examples include:

A student using a screen reader can hear the purpose of an image, not just “image123.jpg.”
A multilingual learner follows along with video captions to support comprehension.
A student with color blindness can understand a chart that uses both color and labels.
A student on a phone can zoom in on text without needing to scroll side to side.

When materials aren’t easy to see or hear, it’s easy to assume the issue is student behavior—but the design itself may be the barrier. Simple, mindful adjustments can allow every learner to participate fully.

Page updated

Report abuse