The Potomac Dance Ensemble presents its annual spring show, “On Our Toes,” featuring tap, jazz, modern, hip-hop and classical ballet dance at Winston Churchill High School, 11300 Gainsborough Road, Potomac, on Friday, May 11 at 8 p.m. and Saturday, May 12 at 2 and 8 p.m. Tickets are $20; $15 for students. Call 301-299-7504.