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# compass lesson
create a die on the BBC micro:bit #button #pressed #math #random #var #string #if #docs
### @video td/videos/compass-0
## Topic
If (Conditionals)
## Quick Links
* [activity ](/microbit/lessons/compass/activity )
* [challenges ](/microbit/lessons/compass/challenges )
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* [quiz ](/microbit/lessons/compass/quiz )
* [quiz answers ](/microbit/lessons/compass/quiz-answers )
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## Prior learning/place of lesson in scheme of work
Learn how to use an if statements to run code run code depending on whether a condition is true or not. We will be learning how to create a compass with If statements, Forever, Variables, Assignment Operator, Comparison Operator, Show String, and Show LEDs
## Documentation
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```docs
input.compassHeading()
basic.forever(() => {})
let x = 0
if (true) {}
basic.showString("Hello!")
basic.showLeds(`
. . . . .
. . . . .
. . # . .
. . . . .
. . . . .
`)
```
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## Objectives
* learn how to run code when the BBC micro:bit is shaken, when running code in the web browser, moving the mouse quickly simulates shaking
* learn how to create a local variable as a place where you can store and retrieve data
* learn how the assignment operator is used to declare a new local variable
* learn how to declare a new local variable or update the value of a variable
* learn how to return a random number
* learn how to conditionally run code depending on whether a condition is true or not
* learn how to show an image on the LED screen
