Angela DiBattista's attorney, Philip Fabiano, said she has been rehired by the school district after a long legal battle and reported for work Monday as a math teacher.
A Commonwealth Court ruling a year ago said the former Cornell Intermediate School fourth-grade teacher had an "implied" immunity agreement when she testified during a 2005 hearing on the other teacher.
The opinion did not specifically order that she be rehired. The state Supreme Court declined to hear an appeal in March.
A district spokeswoman declined comment on DiBattista's status, saying it was a personnel matter.