This worksheet is differentiated by task and outcome: the aim is to answer as many times tables questions as possible in five minutes. The level of difficulty of the questions is configurable, and a new set of questions is generated each time the spreadsheet is opened. Guidance notes are also provided. It has proved very popular with my classes.Other topics covered: Numbers

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.