Designed for practical use
Accessibility
We aim to make this website conform to WCAG 2.2 Level AA.
What we have built in
Access should not be an extra step
- Keyboard-operable navigation and interactive controls.
- Visible focus states and generous touch targets.
- Colour is supported by words and labels rather than used alone.
- Reduced-motion preferences are respected.
- Images have descriptive alternatives where they carry information.
- Interactive worksheets use plain prompts and print with high contrast.
Latest accessibility review
Reviewed 6 August 2026
This technical review covered keyboard semantics and focus order in the source, responsive and reflow rules intended for 200% and 400% zoom, reduced-motion and forced-colour styles, mobile breakpoints, form labels, accessible names and progress announcements.
The live browser test surface was unavailable during this pass, so an end-to-end rendered reflow check and testing with a physical screen reader such as NVDA or VoiceOver remain planned. We do not claim full WCAG 2.2 AA conformance on the basis of this review.
Known limitations
What we are still checking
No physical screen reader was used in this review. The site is designed to work without animation and all six worksheets expose labelled controls, but browser and assistive-technology combinations can behave differently. NVDA or VoiceOver testing remains a planned improvement, alongside repeat checks after substantial content or interaction changes.
Alternative formats
Ask for the information another way
If you need information from this site in another format, email tonydaguk@gmail.com and say which page or tool you need and what format would work better for you.
Tell us what is not working
Accessibility feedback
If a page or tool is difficult to use with your access technology, tell us which page, browser or device you were using and what happened. We will use that information to improve the resource.