This post starts you off with Processing. Download, run and draw some coloured lines. The computer programming language Processing, is a great way to start coding. You get a quick visual result from a few lines of code.
Learn RGB colour coding
Values of Red, Green and Blue colours are used to code colours on a computer. Learn how to create different colours from RGB values.
Rainbows and Colours
Understand rainbows, why we typically think it has 7 colours, and make a colour spinner.