A ready-to-teach 23-slide Year 6 computing lesson exploring how different secret codes are created, recognised and solved.
Pupils investigate Caesar, acrostic, nth-letter, Pigpen and data-shift ciphers, using patterns, keys and logical reasoning to decode messages. The lesson includes codebreaking challenges, key vocabulary, a Bletchley Park link, worked examples and a final task in which pupils design, exchange and evaluate their own solvable coded message.
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