Mr. Ashley said he had frequently seen junior high school-age boys mock and curse girls who beat them.

America saw Little Ricky as an infant in the 1952-53 season, a toddler from 1953 to 1956, and finally a young school-age boy from 1956 to 1960.

At times, school-age boys outperform girls on math achievement tests,52 but boys' advantage in math isn't clearly evident until secondary school.

Unicef estimated that in 2004, about 50 percent of all school-age Iraqi boys and 35 percent of school-age girls were enrolled.

Two school-age boys came home with their red backpacks.

Declining enrolments at both schools, influenced by the movement of families with school-age boys to the outer suburbs of Melbourne, was a major factor in this decision.

"Although divorce appears harder on elementary school-age boys, remarriage appears harder on girls," said Dr. Bray.

He helped organize a program for the Archdiocese of New York to give individual attention to school-age boys and girls in danger of sliding into delinquency.

Originally a program for high school-age boys, it became open to girls and boys in 1963.

On the playground, school-age boys resist playing with girls.