In this age of content digitalization, equal access to web-based learning resources is important as it contributes to offering all students with same opportunities to pursue their learning and career goals. With the current circumstance, the outbreak of the Covid-19 pandemic has forced most governments in the world to temporarily close educational institutions of different levels, which is now influencing roughly 70% of the global learner population. Therefore,there has been an unprecedented worldwide shift from face-to-face to online modes of teaching and learning. At this stage, it is looking increasingly likely that the issue of web accessibility in online education is more crucial than ever. This paper reports on an analysis of a real online lesson for students who are doing their Masters degree at an Australian university. The analysis aims to describe the lesson that relies on the blend of text, audio-visual resources, links, and hyperlinks that usually pose certain obstacles related to perceiving and understanding the content to the students, especially those with vision and hearing disabilities. Then, it continues to analyze and evaluate the accessibility of the lesson using Web Content Accessibility Guidelines 2.1, which have been proposed by the World Wide Web Consortium. Some recommendations for improving the accessibility of the lesson have also been made to benefit and reach the widest audience.
Han Le, Long An High School for the Gifted, Vietnam