Issac Woodard Jr., 50, pupil personnel worker at Roger Brook Taney Junior High School in Camp Springs, died Saturday at his home in Washington after a heart attack.

He had joined the Prince George's County public school system in 1961 as a social studies teacher at Mary McCleod Bethune Junior High School in Chapel Oaks. He moved to the Taney school as a teacher in 1965 and was appointed pupil personnel worker four years later.

Born in Smithfield, N.C., Mr. Woodward was a graduate of North Carolina A&T State University and held a master's degree from Temple University. He also attended American University, the University of Maryland and Bowie State College.

After serving in the Army for two years, he worked as a cartographer for the Army Map Service from 1954 to 1961.

Mr. Woodard was a faculty representative to the Prince George's County Education Association and a member of the Maryland State Teachers Association. He was active in the Plymouth Congregational Church.

He is survived by his wife, Mary D. of the home; a son, Willie Hilliard, of Mount Vernon N.Y.; his mother, Sudle Boykins Woodard, of Washington, and two sisters, Pauline W. Bowden of Washington, and Hattie Ralford, of Smithfield, N.C.