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edX Accessibility Training

Enrollment is Closed

About this course

Welcome to edX Accessibility Training, a course designed to educate all staff about our organization's commitment to expanding access to education for everyone, including those with disabilities.

What you can expect to learn:

  • What accessibility means,
  • How people with disabilities use the edX platform and our mobile apps,
  • What our legal obligations are,
  • How you can actively improve and promote accessibility at edX.


There are no prerequisites for this class. It was designed to be appropriate for anyone who works at edX. If any of the content


Everyone at edX is legally required to complete this course and complete the assessments that appear at the end of each module.


We encourage you to leave feedback on this course in the discussion forum. The objective of this course is to provide an overview of accessibility at edX and an introduction to core accessibility concepts. If there is a particular topic you would like to learn more about, please let us know. This is the only obligatory course on accessibility. However, your feedback will help us as we design additional courses on more advanced accessibility topics.

Course Staff

Mark Sadecki

Photo of Mark Sadecki

Mark has been working in digital accessibility since 1998 when he was a sub-contractor on the MIT Open Courseware project before he began working at the Carroll Center for the Blind as a consultant where he designed and developed a Learning Management System for visually impaired users and those involved in their training and rehabilitation. Mark also worked at the W3C as the Staff Contact for the HTML Accessibility Task Force, a joint task force of the Protocols and Formats Working Group (PFWG) and the HTML Working Group (HTML WG) which manages the progress of accessibility solutions in HTML5. He was also heavily involved in Canvas 2D and Media Accessibility. Mark is an invited expert at the W3C and is still active in ensuring that the Open Web Platform remains accessible to everyone.