From the Pennsylvania Department of Education:
Schools designated as TSI are required to develop building level School Improvement Plans and secure local education agency (LEA) approval from the Board of School Directors or Charter School. Unlike schools designated for CSI or A-TSI, schools designated as TSI can determine the duration of their improvement plan. TSI improvement plans do not require PDE approval.
Currently, in ASD, the following schools have TSI designations: Washington Elementary and Building 21 High School. Below are the most recent TSI plans.
Updated Annually.