Q1: How many different ways are there to shade this to show ¼?

Q2: How might kids shade this to show ¼?

Source:

```
Q1: How many different ways are there to shade this to show ¼?
Q2: How might kids shade this to show ¼? pic.twitter.com/vntk6kcYw7
```

— David Wees (@davidwees) April 25, 2015

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