Parents can explore a multitude of summer opportunities for school-age children at a fair on Wednesday, February 28.  Local and regional providers will be available to talk about summer camps, programs and volunteer activities.  Parents can meet program staff, pick up applications, and get information on financial assistance.  The fair will be held from 7 to 8:30 p.m. at Carver Educational Services Center, 850 Hungerford Drive in Rockville.  To register, you can call 240-314-4825.