Tenure guarantees a job for life.
Tenure is about due process, not about guaranteeing jobs for life. In New York, new teachers serve a three-year probationary period, during which school officials have an obligation to evaluate those teachers' job performance. If, after three years, the local school board votes to grant a teacher tenure, it simply means the teacher is entitled to a fair hearing before a neutral third party if there are allegations of incompetence or wrongdoing. During the first three years, teachers and teaching assistants generally can be dismissed at any time for any reason