Allen Avery, head football coach at Richard Montgomery High School, was suspended from his teaching and coaching duties last Thursday after being involved in an altercation with a student.

According to sources at the school, Avery, who is a teacher in the Work Oriented Curriculum work-study program at Richard Montgomery, was with a class when a student became unruly. Avery physically restrained the student and took him to the main office. The student has accused Avery of striking him.

Reached at his home last night, Avery, head coach at the Rockville school for eight years, said he could not comment on the situation until a meeting with the office of Montgomery County Superintendent of Schools Wilmer S. Cody today.

Should the superintendent's office rule in favor of Avery, he would return to his school duties Wednesday morning. An unfavorable ruling could result in further investigation, a reprimand or stiffer penalty.

School Athletic Director Paul Brey said Avery was placed on administrative leave with pay pending an investigation of the matter.

"Al was involved in a situation not associated with athletics," Brey said. "The investigation is being handled by the superintendent's office now and hopefully will be resolved . . . That's about all I can say about the situation."

Avery led the Rockets to the Maryland State A championship in 1981 and barely missed returning to the playoffs in 1982. Last year was a rebuilding period and Richard Montgomery finished 0-10. After losing their opener this season, the Rockets won four straight before losing Saturday at Sherwood, 12-0.

In Avery's absence, assistant coaches John Cino and Lee Maust are handling the team.