New! My 195th Gems post. 💎 Ideas, resources and updates for maths teachers. www.resourceaholic.com/2026/01/5-ma... Hat tips to follow. #ukmathschat #mathstoday

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Find a prime number one less than a square. Now try and find another.

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The difference of two squares is very useful! n²-1=(n-1)(n+1) If n²-1 is prime, then n-1=1, or n+1=1. The only valid solution is when n=2 you might be looking for a very long time in your search for another one!

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🔢 Developing Fluency with Multiplicative Reasoning at KS3 Work Group in action! Exploring effective ways to teach multiplicative reasoning, sharing strategies and using carefully-designed classroom resources and guidance materials to improve their teaching. #EduSky #UKMathsChat

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New! My 193rd gems post. Ideas, resources and updates for maths teachers. 💎 www.resourceaholic.com/2025/10/5-ma... Hat tips to follow. #mathstoday #ukmathschat

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