The student said he began to suspect that one of his classmates was engaging in inappropriate relations with Ramos.
During the hearing, she sat alone in the back of the courtroom, combing her hair and staring into her pink cellphone, according to the CT Post.
Judge William Holden ordered Ramos not to have further contact with her alleged victims.
She was booked on two counts of second-degree sexual assault, and released after posting $50,000 bond.
The charge is the same one she was hit with earlier this summer, in the first case.
Three days after Ramos was arrested in June, police say another victim came forward and admitted to having sex with the teacher.