NotInMyName International says it will stage a demonstration outside the Prinshof School for the Blind in Pretoria on Monday.
The movement is demanding justice following the alleged sexual assault of a 14-year-old learner by a male teacher at the school.
According to a statement from NIMN, the child confided in her father, saying she no longer feels safe at the school, alleging that she had been sexually assaulted by one of her teachers.