Press and Hold Ctrl and press Show Windows Key

!!!*** Next click Copy to Clipboard ***!!! (This button should be in the lower right side ?)

Bring up Google docs and past (Ctrl V)

Crop the image and turn it in!

How to screen shot from Chromebook:

https://www.youtube.com/watch?v=0TpcChMuZ00

 

Crop an image in Google docs:

https://www.youtube.com/watch?v=yK2T68VlSyI