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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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90
docs/lessons/screen-wipe/activity.md
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# screen wipe blocks activity
Clear the screen by pressing buttons on the micro:bit
### ~avatar avatar
This activity will teach how to clear the screen by pressing button A on the micro:bit.
### ~
You can use the clear screen` function to turn off all the LED on the screen. Let's illustrate this concept with a small script where the user has to press the button A to turn off the screen. Let's start by adding the code to show an animation.
```blocks
basic.showLeds(`
# # # # #
# # # # #
. . . . .
. . . . .
. . . . .
`)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
# # # # #
# # # # #
`)
```
We add another line of code that registers an *event handler* `on button pressed` *A* and calls `clear screen`.
```blocks
basic.showLeds(`
# # # # #
# # # # #
. . . . .
. . . . .
. . . . .
`)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
# # # # #
# # # # #
`)
input.onButtonPressed(Button.A, () => {
basic.clearScreen()
})
```
*Run* the script in the simulator or on the micro:bit to see how this works!
### ~avatar boothing
Excellent, you're ready to continue with the [challenges](/lessons/screen-wipe/challenges)!
### ~

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docs/lessons/screen-wipe/challenges.md
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# screen wipe blocks challenges
Coding challenges for screen wipe.
## Before we get started
Complete the [screen wipe](/lessons/screen-wipe/activity) activity and your code will look like this:
```blocks
basic.showLeds(`
# # # # #
# # # # #
. . . . .
. . . . .
. . . . .
`)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
# # # # #
# # # # #
`)
input.onButtonPressed(Button.A, () => {
basic.clearScreen()
})
```
### Challenge 1
Create an event handler for Button B.
```blocks
basic.showLeds(`
# # # # #
# # # # #
. . . . .
. . . . .
. . . . .
`)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
# # # # #
# # # # #
`)
input.onButtonPressed(Button.A, () => {
basic.clearScreen()
})
input.onButtonPressed(Button.B, () => {
})
```
### Challenge 2
Replay the animation when the "B" button is pressed placing the `show LEDs` block on the canvas.
```blocks
basic.showLeds(`
# # # # #
# # # # #
. . . . .
. . . . .
. . . . .
`)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
# # # # #
# # # # #
`)
input.onButtonPressed(Button.A, () => {
basic.clearScreen()
})
input.onButtonPressed(Button.B, () => {
basic.showLeds(`
# # # # #
# # # # #
. . . . .
. . . . .
. . . . .
`)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
# # # # #
# # # # #
`)
})
```
### Challenge 3
Show an animation that scrolls back up when you press button "B".
* tap the *run* button to view your final product!

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docs/lessons/screen-wipe/quiz-answers.md
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# screen wipe quiz blocks answers
Clear the screen by pressing the "A" button after an animation has been played
This is the answer key for the [screen wipe quiz](/lessons/screen-wipe/quiz).
## 1. What does the function "clear screen" do on the micro:bit?
This function turns off all the LED lights on the LED screen.
## 2. Write the line of code that displays this image.
![](/static/mb/blocks/lessons/screen-wipe-4.png)
```blocks
basic.showLeds(`
. # . # .
. # . # .
. . # . .
# . . . #
. # # # .
`)
```
## 3. Write the condition that will detect on button A pressed
```blocks
input.onButtonPressed(Button.A, () => {
})
```
## 4. Write the code that will clear show LEDS from the screen after pressing button A
```blocks
input.onButtonPressed(Button.A, () => {
basic.clearScreen()
})
```

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docs/lessons/screen-wipe/quiz.md
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# screen wipe blocks quiz
Clear the screen by pressing the "A" button after an animation has been played
## Name
## Directions
Use this activity document to guide your work in the [screen wipe activity](/lessons/screen-wipe/activity)
Answer the questions while completing the tutorial. Pay attention to the dialogues!
## 1. Describe what "clear screen" does?
## 2. Write the code that clears an image from the screen
![](/static/mb/blocks/lessons/screen-wipe-4.png)
## 3. Write the condition that will detect on button A pressed
## 4. Write the code that will clear show LEDS from the screen after pressing button A