For an explanation of "exemplary" status, the Grapevine is referring you to this link: http://www.brownsburg.k12.in.us/documents/administration/communicators/AYP%202009-2010%20explained.pdf
The Indiana Department of Education will announce the State's Four Star schools (based on attendance rates, student achievement and performance on the I-STEP+) in January 2011.
You can also find information on the qualifications for Four-Star status in the September Key Communicator. You can access that publication on the BCSC website under the "Resources" tab, or you can subscribe and receive this monthly publication via email by going to http://enews.brownsburg.k12.in.us.