What movie has students that hold their teacher hostage in her own house they tie her up to a bed she gets out of it by the end of the movie what is the title of this movie?

The movie you're referring to is "The Substitute" (1996). In this film, a group of students takes their teacher hostage, but she eventually manages to escape from her predicament. The story revolves around themes of resilience and empowerment as she confronts the challenges posed by her students.