pxt-calliope/olddocs/lessons/smiley/quiz.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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# smiley blocks quiz
Make a smiley face blink
## Name
## Directions
Use the hints in the [Smiley](/lessons/smiley/activity) activity to answer this quiz!
## 1. Describe what `show LEDs` does
## 2. Why is there an extra empty frame after the smiley face?
![](/static/mb/lessons/smiley-0.png)
## 3. Draw the image created with this code
```blocks
basic.showLeds(`
. # . # .
. # . # .
. . . . .
# . . . #
. # # # .
`)
```
![](/static/mb/empty-microbit.png)
## 4. Draw the images created with this code
```blocks
basic.showLeds(`
. # . # .
. # . # .
. . . . .
# . . . #
. # # # .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
`)
```
![](/static/mb/lessons/looper-3.png)