In a student account, click on My Shelf, then choose the book for which you would like to view data.
On the top of that page, choose the type of writing activity you would like to see:
Here you can see the written responses, the score (teachers, see here for how to enable this), and the post-quiz report from Owlfonso (click "details" on the right):
You can print by right-clicking and choosing print, or by pressing CTRL/Command + P.
You can also see your progress toward your teacher's goals directly on your dashboard:
Use the drop-down to change the time period: