Stella Stakolosa grinned when she saw the image projected on the screen Tuesday morning in a classroom at College Park Academy, a charter high school in Riverdale Park, Md. “Mom, it says Stella!” the young girl exclaimed to her mother, Megan Stakolosa. Stella pumped her fist. Stella, who has cerebral palsy and uses a wheelchair, was the center of attention at the school where about 20 high school juniors and seniors spent the past semester working on a project to help her play lacrosse, her favorite sport.