> For the complete documentation index, see [llms.txt](https://docs.kidscode.co.za/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kidscode.co.za/microbit-beginners/lesson-4.md).

# Lesson 4

### What will you learn in this lesson?

By the end of this lesson, you will learn the following

* What does a variable mean? 
* How does it work?
* How to use variables and perform actions on micro:bit?