Another reason to be jealous of Torontonians: The National Ballet of Canada offers a very cool series called Ballet Class with the Stars. Every month or so, the company’s principal dancers take a break from rehearsals to teach an open master class to local dance students. Participation is open to any aspiring preprofessional aged 14 or older who's reached at least an intermediate level of technique. This upcoming Sunday, Aleksander Antonijevic will teach from 11 to 12:30 at the Walter Carsen Centre for The National Ballet of Canada. Heather Ogden is scheduled to give the class on May 6. Check out NBC's website for more info.