Worked examples are labeled as teaching files
Examples on HNK pages are teaching files. They are not a gallery of named student winners and not a claim of school results. The solar-panel claim card on the guide is one such file. A number card that says “accuracy 97% has no denominator” is another. If an older paragraph on this domain sounded like a trophy case, treat it as copy to ignore.
When you add your own example, strip names. Keep the four boxes. Write info@hnk.org if you want a module that uses your school’s existing assignment rather than these teaching files.