The Alexandra Magistrates Court turned down his bid to have the charges dropped.
The 33-year-old appeared in the Alexandra Regional Court on Tuesday where the matter was postponed to next month.
A matric pupil laid criminal charges against the man and two other girls have also come forward but have chosen to testify in the internal disciplinary hearings and not go the legal route.
The 33-year-old man appeared in the Alexandra Magistrates Court on Tuesday on sexual assault charges where his case was postponed to next month.
The 33-year-old man was arrested in January after being accused of abusing pupils between 2017 and last year.
