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Developing and delivering accessible instructional content—meaning content that students with and without disabilities can readily engage with and use—is essential to the success of an online course. While many accessibility standards and guidelines are broadly applicable, there are also specific considerations unique to different content formats and delivery modes. In this piece, we present recommendations for enhancing the accessibility of PDFs for students.

Students with diverse cognitive, linguistic, and academic abilities benefit from accessible text. The Web Content Accessibility Guidelines (WCAG) establish numerous requirements (known as success criteria) to ensure that text is perceivable, operable, and understandable to all users. This guide synthesizes the essential criteria related to text accessibility. Following these guidelines when creating course content, such as documents, slides, and pages in the LMS, will help you eliminate potential barriers for your learners.

What is “alt text”? Alt text is descriptive text linked to an image, graph, or other visual content that allows users to understand the visual without viewing it. Any image online should contain alt text, but guidelines differ depending on whether the image is simply decorative or related to other content on the page.

Universal Design for Learning (UDL), which has roots in Ronald Mace’s concept of Universal Design, is a pedagogical framework that supports diverse learning needs. According to CAST, the creator of the framework, UDL seeks “to improve and optimize teaching and learning for all people based on scientific insights into how humans learn” (2018). UDL is not a step-by-step curriculum plan, but rather an approach to pedagogy and curriculum development that aims to make the learning environment as accessible as possible for as many learners as possible (Derer, 2021; CAST, 2018).

Today’s students are diverse and include marginalized groups that have historically been excluded from mainstream education (Ladson-Billings, 2013). In 2021, students of color comprised upwards of 40% of the 15.4 million undergraduates enrolled in U.S. colleges and universities (Nam, 2023; National Center for Education Statistics, 2023). Gloria Ladson-Billings, whose work centers on culturally relevant pedagogy, argues that diverse students require inclusive learning to succeed. “[These students] do not fit neatly into the rigid categories of race, class, gender, or national origin” upon which hierarchies of the past have been built (Ladson-Billings, 2013, p. 5), so authentic representation of diversity in higher education is critical. Adrienne Keene, an assistant professor of American Studies at Brown University, writes that instructors can do their part to support underrepresented students by being honest about their own bias and blind spots, critiquing their course materials, and integrating meaningful representations of diversity into the curriculum (Fuchs et al., 2020; Keene, 2015).

Podcasts are digital audio that you can download or stream onto a computer or mobile device. They are convenient, portable, reusable, and do not require particularly high-tech devices or connections. They are also popular. According to a 2022 Infinite Dial survey, "Seventy-three percent of the U.S. 12+ population (an estimated 209 million people) have listened to online audio in the last month, up from 68% in 2021" (Edison Research, 2022). While podcast use declined slightly in 2022, returning to pre-pandemic levels, the medium is still burgeoning, with plenty of room for further growth.

Spreadsheets are used for a broad array of data-related tasks and projects across numerous disciplines. Maximizing the utility of spreadsheets included as course materials requires careful attention towards their contents and formatting. In this post, we present recommendations for enhancing the clarity, consistency, and accessibility of course spreadsheets for students.

Some students (older learners, learners with partial sight, learners with colorblindness, and learners using monochrome or text-only displays) have difficulty perceiving color. To ensure that course content is perceivable to all learners, you should follow guidelines for color use that have been established by the World Wide Web Consortium (W3C), the organization responsible for international standards of web accessibility, including the Web Content Accessibility Guidelines (WCAG). Three essential WCAG requirements, known as success criteria, are summarized below.