The program Scratch is free to download and install on Windows or MacOS computers so that you can code without an internet connection, and can also be used online at scratch.mit.edu if the school has an adequate internet connection

Coding is the writing of instructions using a programming language that a computer understands to achieve a specific goal or to solve a problem. Coding, similar to any language we use, has certain structures and rules – like grammar – and these rules have to be learnt and practised.