LEGOLAND Florida offers a Standard Annual Pass for Teachers for free via this link. That's $129 off and the the best such offer we've seen for this park since August. Sales tax is added where applicable. The ticket does not include admission to the water park. It is valid for one year from the date of redemption or or December 31, 2013, whichever comes first.
Update: This offer is only available to certified teachers in the state of Florida who teach grades K through 12.