At Broad Acres Elementary School in Silver Spring, May Day was celebrated with a buffet honoring representatives of Washington cultural groups that have provided performances and services for children of low-income and disadvantaged families in Montgomery County.

The groups are the National Symphony Orchestra, the Washington Performing Arts Society, the Needlework Guild and the Musicians Federation Trust Fund.

Children entertained during lunch and the guests toured classrooms and talked with students and teachers. Guests included Betty Ruth Bell, wife of Secretary of Education Terrel H. Bell, who was honorary chairman of the Presidential Cabinet Committee supporting the National Symphony concert later this month; Dr. George Lisby, chief of the federal Title I program for Maryland; Mrs. Christopher T. Bever, National Symphony education chairman, and Jack Kukuk, director of education at Kennedy Center. Federal funds are provided under the Title I program for schools attended by disadvantaged children.

A benefit performance by the National Symphony Orchestra is scheduled for May 19 and 20. It will feature "The Mischievous Child," a children's opera by Maurice Ravel performed by six singers and the Bob Brown Puppets. All third graders in special programs for disadvantaged children throughout the metropolitan area are invited to attend. The production is sponsored by the Kennedy Center's office of education and the George Preston Marshall Foundation.