2006
Krumholz and his team teach their first PTI class, "Intermediate Algebra with Applications," at Garden Sate Youth Correctional Facility (and accredited by Mercer County Community College).
2007
Krumholz and other Princeton scientists begin teaching classes at Edna Mahan Correctional Facility for Women.
2008
PTI begins teaching English composition courses in partnership with the Woodrow Wilson School and the Pace Center for Civic Engagement. PTI also initiates partnerships with The College of New Jersey and Rutgers University to expand course offerings.
2013
PTI becomes a founding member of the NJ Scholarship & Transformative Education in Prisons (NJ-STEP) Consortium, which begins to create a comprehensive statewide prison education network.