pxt-calliope/olddocs/lessons/magic-8.md
Tom Ball f4eca66648 move lessons out of web site
will move select lessons back to "educators" section
2016-06-14 11:49:58 -04:00

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Markdown

# magic 8 lesson
a fortune teller game with the BBC micro:bit.
## Topic
If (Conditionals)
## Quick Links
* [activity](/lessons/magic-8/activity)
* [tutorial](/lessons/magic-8/tutorial)
* [challenges](/lessons/magic-8/challenges)
* [quiz](/lessons/magic-8/quiz)
* [quiz answers](/lessons/magic-8/quiz-answers)
## Prior learning/place of lesson in scheme of work
Learn how to creating **conditionals**, `if condition do` to conditionally run code depending on whether a condition is true or not. We will be learning how to create a fortune telling app using local variable and conditionals (If), input on shake as well as simple commands, such as show string, show number, and clear screen.
## Documentation
```cards
if (true) {}
Math.random(3)
input.onGesture(Gesture.Shake, () => {})
basic.showNumber(7)
basic.clearScreen()
basic.showString("Hello!")
```
## Objectives
* learn how to show a string on the LED screen
* learn how to show a number on the LED screen
* learn how to learn how to turn off all the LED lights on the LED screen
* learn how to use the input on shake
* learn how to learn how to create a local variable to store data so that you can use it later in your code
* learn how to learn how to return a random number
* learn how to learn how to conditionally run code depending on whether a condition is true or not