Penny Nixon, the Philadelphia School District's chief academic officer, is taking an educational sabbatical, effective Nov. 1.
The sabbatical was announced to principals Friday in an e-mail from Nixon, and to other staffers in an e-mail from William R. Hite Jr., the new superintendent.
Nixon, who has overseen academics during a tumultuous time in the district, will finish her doctoral studies at the University of Pennsylvania's Graduate School of Education.
District spokesman Fernando Gallard said the sabbatical was solely for Nixon's studies and was not related to investigations of state exam cheating. Nixon was formerly principal of Wagner Middle School, one of the 53 district schools still being probed for possible improprieties.