Tuesday, 29 November 2022
Conducting My First Accessibility Awareness Workshop @ University of Reading
Friday, 23 September 2022
Making equations accessible
Today I watched the JISC Accessibility Clinic recording A collaborative approach to maths accessibility learning a lot about the challenges in making math or STEM content accessible.
I have used MathJax and MathML with Moodle and have blogged about it earlier in my work at UCEM.
- Using MathML with Moodle
- Mathematical Equations in Moodle
- Accessibility of Mathematical Equations with Screenreader
- Generating MathML Code for Equations with MathType
hypotenuse = (a^2+b^2)^0.5 because I am not familiar with MathML to make it work.
Then write your code
<p> \ [hypotenues = \ sqrt{a^2+b^2}\]</p>
There are no spaces between backslash and the character next to it but to show how to write the equation I am adding spaces
Then the MathJax will make it look like
\[hypotenues = \sqrt{a^2+b^2}\]
There are obviously some notations to learn.
MathJax documentation on Writing Mathematics for MathJax
\[...\] for displayed mathematics
\(...\) for in-line mathematics and lots more for various operations.
Tuesday, 1 February 2022
Find Colour Contrast
Sufficient colour contrast is important to make it easier for people to recognise foreground from background. There are three WCAG 2.1 guidelines on accessible colour contrast and they are:
1.4.3: Contrast (Minimum) AA
- Text contrast ratio of at least 4.5:1
- Large text 3:1
- 18 point text or 14 point bold text is judged to be large enough
1.4.6: Contrast (Enhanced) AAA
- Contrast ratio of at least 7:1
- Large text 4.5:1
1.4.11: Non-text Contrast AA
- UI component and graphical objects to have 3:1 contrast against adjacent colours
- Hexadecimal value
- RGB value
- Using colour picker