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move lessons out of web site

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will move select lessons back to "educators" section
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Tom Ball
2016-06-14 11:49:58 -04:00
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docs/lessons/snowflake-fall/activity.md
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# snowflake fall blocks activity
design a blinking rectangle animation.
### ~avatar avatar
Welcome! This tutorial will teach how design a **snowfall animation**. Let's get started!
### ~
Let's start by creating a `forever` loop that will allow us to repeat the show LEDs code. Any code in the `forever` loop will repeat in the background... forever.
```blocks
basic.forever(() => {
basic.showLeds(`
. . . . .
. . # . .
. # # # .
. . # . .
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
`)
})
```
The next step is to add two `show LEDs` blocks inside the `forever` loop to repeat an animation.
```blocks
basic.forever(() => {
basic.showLeds(`
. . . . .
. . # . .
. # # # .
. . # . .
. . . . .
`)
basic.showLeds(`
. . # . .
. # . # .
# . . . #
. # . # .
. . # . .
`)
})
```
Run your code in the simulator or download it to your BBC micro:bit to see what happens!
### ~avatar avatar
Excellent, you're ready to continue with the [challenges](/lessons/snowflake-fall/challenges)!
### ~