The Edmonton teacher who gave his students zeros now faces an investigation for possible unprofessional conduct after the superintendent laid a complaint with the Alberta Teachers' Association.

Edgar Schmidt, the superintendent of Edmonton Public Schools, laid the complaint against Lynden Dorval on May 18th. Dorval learned the matter was under investigation after he received a letter this week from Kurt Moench, the ATA's associate coordinator for member services.

"The purpose of my investigation is to determine whether or not evidence exists to substantiate the allegations against you," Moench wrote in the June 21st letter.

"My report will be used to determine if there is need for further action by the association and, if so, the nature of such action."

According to the letter, Schmidt is alleging that Dorval refused to follow the grading directives of Ron Bradley, the principal of Ross Sheppard High School, refused to attend staff meetings, behaved unprofessionally and was insubordinate.

Complaints must be investigated

Whenever a complaint alleging unprofessional conduct is filed against a teacher, an ATA investigation must take place to determine if the matter should be dismissed or go to a disciplinary hearing.

If an individual is found to have breached the code of conduct, penalties include a verbal reprimand, suspension or cancellation of membership, or a recommendation to the education minister about the teacher's certification.

"So there's quite a range of potential consequences or penalties," said Brian Andrais, the ATA's coordinator of member services.

Dorval was suspended in May after refusing to adhere to the school's no-zero marking policy, where teachers are supposed to mark missed tests and assignments as incomplete. 

He attracted national attention after he went public about his suspension.

Earlier this week, Edmonton public school board trustees agreed unanimously to review the district's marking policies.