For most Martha’s Vineyard teenagers, the end of high school is both an achievement to celebrate and a milestone to pass on their way to adulthood and independence. It’s different for autistic students.

The Island Autism Group (IAG) is building momentum this summer before the school year begins. The organization is getting ready for its eighth annual tea at the Dr. Daniel Fisher House in Edgartown on Wednesday, July 30, from 3 to 5 p.m.