Fairfax County Supervisor Alan H. Magazine announced last week that he will nominate Roger Teller of Falls Church, a professor at Georgetown University, as the Mason District representative on the county school board.

An at-large member for the seat to be vacated at the end of the month by Robert G. Hunt will be selected soon by board chairman John Herrity. Teller would replace Mary Anne Lecos, who has asked not to be reappointed to the board when her term expires June 30.

District representatives on the school board are nominated by individual supervisors and at-large members are nominated by the chairman. All must be confirmed by the full County Board before serving two-year terms.

At the County Board meeting this week, Supervisor Martha V. Pennino (D-Centreville) asked for the reappoinment of school board chairman Rodney F. Page of Centreville and at-large member Frank M. Alston, whose terms expire at the end of this month. Supervisor John P. Shacochis (R-Dranesville) also renominated Nancy K. Falck as the school board member from his district. All of those appointments were approved by the full County Board.

The term of school board vice chairman Anthony T. Lane of Lee also runs out at the end of this month, but he is expected to be re-nominated before the new term begins July 1.

This years non-voting student representative to the school board, Lynn Broaddus, will be replaced next fall by A. Lewis Lowery of Langley High School. The student representative changes each year. Lowery's appointment is also expected to be made official by the end of the month.

Magazine said he will officially nominate Teller at Monday's meeting of the Board of Supervisors.

Herrity, however, will not receive the finalists for Hunt's slot from a citizens group, set up to chose candidates, until June 25. He said he will then want to interview each of the candidates personally so it may be July before he makes a nomination for the at-large seat.

Informal hearings and question-and-answer sessions with candidates for the unfilled at-large seat will be held tonight at Oakton High School and on June 21 at Key Intermediate School. Both meetings will begin at 8 p.m.

Twelve of the applicants for the job will speak briefly at the hearings and answer questions. They are Robert A. Wells, of Lee; Norma S. Holmes, Falls Church; Joanna Rubin, Annandale; Gary L. Jones, Fairfax; Toni Carney, Burke; Sharon Murphy, Reston; Alan Bird, Bailey's Crossroads; Steven Purcell, Reston; Willard Olson, Fairfax; Thomas Schaaf, Oakton; Ritchie Coryell, Mt. Vernon; and Patrick Mullins, Annandale.

The county-wide citizens group, headed by former Supervisor William Moss, has received resumes from 25 people interested in the school board job. Moss said his group of 14 will meet on June 23 and pick no more than five candidates for Herrity's consideration.

Although this is the first time a county-wide committee has been set up for an at-large seat, the citizen selection committee procedure has been used in other districts for past board appointments, Herrity said.