Suitable for KS2, KS3 and Foundation KS4 Learning outcomes are: We can explain what a prime number is We can find all prime numbers up to 100 We can recall all prime numbers up to 19 We understand how prime numbers are used in cryptography This works well after my ‘Factors PowerPoint and Work Pack’ resource. The starter relies on pupils knowing about multiples and factors, as does showing if a number is prime. Please make sure to cover multiples and factors first.

A whole-lesson activity ideal for KS3 students and consists of a series of cryptographic challenges including Caesar Ciphers, simple substitution ciphers, Morse code and combinations of them. The clues require adaption to different topics.

Three lesson sequence on codebreaking (ideally completed as a single extended project). Lesson 1 is a lecture from Professor Stupples on the history of Code breaking. Lesson 2 is Spy School adapting resources from Charlotte King and Matthew Jones. Lesson 3 is a codebreaking activity which requires pupils to apply all the skills they have learned. Concludes with unbroken CIA code to crack! Please rate.

A set of 40 investigations into different types of numbers - Narcissistic, Kaprekan, Keith, Betrothed, Bell, Proth and many more. Each investigation explains something about the number being investigated & then sets a challenge for the students. All answers are from 1 to 100. Solutions on last 2 pages. (errors corrected 11/1)

Huge number of posters to help to produce some great maths displays - in particular focused on real life maths, maths in the news and careers using maths. I’ve also posted a lot of content on ibmathsresources - so if you like all this, check that out as well!

Maths investigations for gifted and talented GCSE and sixth form students. Everything from code breaking to Goldbach's Conjecture, the Riemann Hypothesis, Faster than light time travel, Modelling diseases, Predator-prey models, Game theory, visualising the 4th dimension, war maths, Benford&'s law to catch fraudsters and much much more!