How can I get the chalkboard?

Hint 1 of 8:

Before you can try taking it, you need to know why it's important.

Hint 2 of 8:

Use your science tricorder on it to detect unusual energy readings.

Hint 3 of 8:

Then talk to the teacher about the board.

Hint 4 of 8:

You need a letter from the superintendent before you can take it.

Hint 5 of 8:

And the superintendent isn't going to give the board up without a reason.

Hint 6 of 8:

Eckhart will suggest that the publisher, Sundergard (one of the poker players
in the tavern), might start a rumor about chalkboards for you.  Go talk to
Eckhart to get the full story.

Hint 7 of 8:

Sundergard wants you to help get a transfer for his son.