Back to School 2011: Public school students head back to class

      Today is the first day of school for public students in D.C. and Prince George's County.

      At Parkdale High School in Riverdale, students{}will get a big welcome back from the Schools Superintendent William Hite. He'll be there at 9 a.m. Monday to take a tour and greet students and staff.

      Mayor Vincent Gray and Secretary of Education Arne Duncan will welcome students back at Eastern High School in Southeast.{}

      A number of parents spent Sunday doing some last-minute shopping for school supplies.

      Over the weekend,{}thousands of volunteers helped clean up schools before the start of classes: throwing away trash, painting and planting flowers.