The fallout from a DVD recording that shows a Sandridge Elementary District 172 principal having sex with a teacher in his office continued Friday, one day after the recordings became widely publicized.

On Friday:

-- a third staff member resigned from Sandridge Elementary District 172, located near Lynwood;

-- the district announced plans to hire an interim principal to serve out the remainder of the school year;

-- a Cook County education official asked for hearings;

-- parents made plans for a meeting with school officials Monday morning.

All this with district voters heading to the polls on Tuesday.

Sandridge Elementary School teacher's aide Anjayla Reed resigned Friday after District 172 Superintendent Diane Dyer-Dawson contacted her about allegations that she appears on a portion of the recording. A woman, reported to be Reed, is seen hugging and touching the principal.

Reed did not give a reason for her resignation, which was effective immediately.

Sandridge Elementary School Principal Leroy Coleman and science teacher Janet Lofton immediately resigned Thursday after DVD recordings began circulating. The DVD shows the two having sex in Coleman's school office, Cook County Sheriff's Police Department Deputy Chief John Palcu confirmed.

Coleman cited health issues and Lofton indicated family illness as the reason for their departures.

The district will hire an interim principal to serve out the remainder of the school year and begin the search for a new, full-time principal for the 2007-08 school year, District 172 Superintendent Diane Dyer-Dawson said Friday.

Her comments came as she spoke to The Times for the first time since copies of DVD recordings began circulating this week.

Dyer-Dawson said she was "totally shocked and devastated that someone would do this to the school and the profession."

Meanwhile, Suburban Cook County Regional Superintendent Robert Ingraffia said he wants to have hearings conducted within the next two weeks regarding the possible suspension of the teaching and administrator certificates of Coleman, Lofton and Reed.

Like parents, teachers and The Times, Ingraffia was sent copies of the sexually explicit DVD. He called the recording "absolutely disgusting" and "reprehensible."

Hearings should not interfere with any kind of criminal investigation, Ingraffia said. A hearing officer would determine whether the teaching and administrator certificates should be suspended for up to a year, Ingraffia said. Ingraffia could then recommend whether the Illinois State Board of Education should revoke the educators' certificates.

School Board President Cheryl Ward could not be reached for comment Thursday.

Said School Board Vice President Bettina Grivetti, "I'm very upset that this type of situation took place in our school. My heart goes out to the parents and students of the district."

Asked if there was a district policy regarding employee relationships in the workplace, District 172 School Board Attorney John Izzo said regardless of policy, it is totally unacceptable for anyone to engage in sexual activity on school grounds.

The principal's office did not have security cameras, and the source of the recordings has become an issue in itself.

"Somebody got access and planted a bug in a school office," Izzo said, adding whoever is responsible is trying to "manipulate the election."

"How did somebody get access to a confidential office space?" Izzo said.

Copies of the video, apparently taped in December and January, emerged just days before Tuesday's elections. Eight candidates are competing for four board slots.

The district is also checking to see whether any board members may have known about the allegations prior to the recordings surfacing.

In a news release issued Friday morning by District 172, the district said it appears former board member Steve Brewster and possibly another member of the board "have known about these allegations for some time and have chosen not to bring the matter to either the superintendent or the whole board."

Brewster -- who turned in his keys to the school and his security alarm code to the superintendent just prior to the start of the School Board's April 4 meeting -- told the Time on Friday he first learned of the allegations when he saw a story on the news Thursday night.