A teacher who taught the wrong maths course to senior students at a regional NSW high school has reportedly been sacked.
Named by some media outlets as Paul Withers, the permanent casual teacher is said to have been at Coonamble High School since the start of the year.
Five year 11 and two year 12 students were taught Maths General 1 instead of Maths General 2 for several months, it was revealed on Wednesday.
Maths General 2 counts towards a student's ATAR, which allows them to enter university, while Maths General 1 does not.
The state's education minister is "furious" at the bungle and has launched an investigation, while parents have called for staff to be disciplined.
An education department spokesman declined to confirm reports by News Corp Australia and the Seven Network on Thursday that the teacher had been let go.
"The department does not disclose private information about its staff," he told AAP.
Students and their parents have met with a department representative and were subsequently advised to do their best in upcoming exams with the help of additional tutors.
"It's bad timing and the scary thing is it could have been worse," P&C president and parent of one affected year 11 student, Lee O'Connor, told AAP.
NSW Education Minister Rob Stokes said the proposed solution was not acceptable.
"I'm angry on their behalf - if this was my child I would be furious," he told 2GB on Wednesday.
"What the school has come up with, in my view, is not acceptable."
Mr Stokes has instructed a representative of the NSW Education Standards Authority to find a solution and investigate the event.
