Dancers from Stowe and Mad River Dance Academy, directed by Helena Sullivan and her associates, gave three performances of the ballet “Peter Pan” and An Evening of Dance over the weekend at Northern Vermont University-Johnson. The academy has more than 300 students, from age 3 to high school seniors, from Stowe, Morrisville, Hyde Park, Johnson, Waterbury, Waterbury Center, Fayston, Duxbury, Warren, Waitsfield, Williamstown, Albany and Montpelier.