sentences:  Riverside consistently places among the top five and has one of the lowest dropout rates of the 72 public school boards in Quebec, both English and French.It is the birthplace of the French immersion program and offers the International Baccalaureate program in many of their elementary and high Schools.Their territory spans more than 7,500 square kilometres and extends from Sorel in the north, along the St. Lawrence River to Sainte-Catherine in the west, south to the United States border and several kilometres east of the Richelieu River.