prefigure.org

What It Is

PreFigure is an authoring system for creating accessible mathematical diagrams, positioned more as an educational technology tool than a traditional course platform. It is designed for producing mathematical graphics in research articles, textbooks, and other teaching materials, and it integrates with the PreTeXt documentation system. The site also provides access to a playground, GitHub Codespace, documentation, and local installation options, making it easier for authors to try or deploy the tool.

Core Capabilities and Course Relevance

In terms of subject area, PreFigure focuses on diagram creation for mathematics, STEM teaching materials, and academic publishing. Its core purpose is not to teach a course, but to help authors describe diagrams in an intuitive language, allowing creators to focus on mathematical structure rather than visual styling details. The text emphasizes accessibility: diagrams can include annotations for screen reader navigation, and tactile versions can be generated for embossing and inclusion in braille textbooks. A single source file can produce both standard images and tactile graphics, which is highly valuable for inclusive education.

Pricing, Certificates, and Instructor Background

Pricing information is very clear: PreFigure will always be free to use and open source, giving it excellent value. The page does not show live classes, recorded lessons, 1-on-1 instruction, or any certification arrangements, so it should not be treated as a career training course. As for instructor or institutional background, the only confirmed contact is David Austin, and there is a resource related to Volker Sorge titled “Authoring Web-accessible Mathematical Diagrams.” Further organizational background is not disclosed.

Pros and Cons

Its strengths are a clear focus and strong public-interest orientation, especially for creating accessible mathematical diagrams. Semantic source code helps preserve mathematical structure and reduces the arbitrariness of purely visual drawing. Integration with PreTeXt is also helpful for open textbook workflows. Its limitations are that it has a certain technical barrier: users need to understand markup language, functions, coordinates, and similar forms of expression. The page does not provide information about Chinese-language support, community size, commercial services, or a structured learning path.

Who It’s For and Access from China

PreFigure is suitable for mathematics teachers, textbook authors, open educational resource creators, STEM accessibility content teams, and institutions that need to prepare screen-reader-friendly or tactile diagrams for learners with visual impairments. Access from China cannot be determined from the crawled text alone and should be marked as unknown. If GitHub Codespace or related resources are unstable to access, users can consider local installation, or combine PreTeXt, LaTeX/TikZ, GeoGebra, Desmos, and other alternatives to complete part of the workflow.