MASTERY CS JOHN WISTER ELEMENTARY SCHOOL

Mastery CS John Wister Elementary is a Title I public charter elementary school that is part of the Mastery CS John Wister Elementary school district, located in Philadelphia, PA with about 504 students offering grade levels from Kindergarten to 5th Grade. Student demographics can be found below. A Title I school provides supplemental financial assistance to school districts for children from low-income families. Its purpose is to provide all children significant opportunity to receive a fair, equitable, and high-quality education. With about 31 teachers, Mastery CS John Wister Elementary has a student/teacher ratio of about 16:1. The national average for public schools is about 15:1. A lower student/teacher ratio is a key factor that determines how much a teacher can devote his/her time to each individual student thus improving, or reducing (in the event of a higher student/teacher ratio) the attention each student is given for their educational needs.

Mastery Charter School – John Wister Elementary is a public charter school located in the Germantown neighborhood of Philadelphia. Operating under the Mastery Charter Schools network, the school serves students in grades K–5. It follows the Mastery model, which emphasizes high academic standards, a structured learning environment, and a commitment to closing the opportunity gap for students in underserved communities.

The school focuses heavily on core literacy and mathematics instruction while fostering a culture of high expectations and personal responsibility. As part of the broader Mastery network, John Wister utilizes a data-driven approach to track student progress and tailor instruction to individual needs. Beyond academics, the school aims to cultivate a supportive school community that encourages character development, preparing students for success in middle school and beyond.

For more information, contact Mastery CS John Wister Elementary at (215) 951-4003 or visit the school personally to speak with a faculty or administrative member about any specific questions you may have.