In #MathsToday we've been doing the GCHQ Christmas Challenge. I gave a copy to one of my classes just before lunch, and by the end of lunch some of them had solved it. It's good fun (it took me a bit longer than them!) www.gchq.gov.uk/news/gchq-ch... - ThreadSky

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ecrmaths.bsky.social • 79 days ago

In #MathsToday we've been doing the GCHQ Christmas Challenge. I gave a copy to one of my classes just before lunch, and by the end of lunch some of them had solved it. It's good fun (it took me a bit longer than them!)
https://www.gchq.gov.uk/news/gchq-christmas-challenge-2024

Comments

beanlywife.bsky.social•79 days ago

What kind of level is this best for? I haven’t heard of it before

ecrmaths.bsky.social•79 days ago

It's for ages 11-18. It was challenging enough for our students to enjoy, but would be accessible for KS3/4 too (there's also a hint sheet for anyone who needs it)

beanlywife.bsky.social•79 days ago

Thank you! I might use it next week then or when I review the homework

ecrmaths.bsky.social•79 days ago

(I gave it to my further maths students, and they enjoyed it)

miss-agd.bsky.social•79 days ago

I love their resources! I used to do a summer cryptography session during drop down days using their resources. I didn't realise they had stuff for Christmas too! Me and my partner use their books as road trip entertainment.

ecrmaths.bsky.social•79 days ago

Ooh, I'll have to look at their other resources; I've only really been aware of the Christmas ones!

ecrmaths.bsky.social•79 days ago

https://www.gchq.gov.uk/files/GCHQ%20Christmas%20Challenge%202024.pdf

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