The top reported proficiency rate is 51% in Science. The lowest is 19% in Math.
Original Research by School Decision on Mastery Prep Elementary Cs
Mastery Prep Elementary is a charter school serving kindergarten through sixth grade in North Philadelphia. Its enrollment of around six hundred students is nearly entirely from low-income families; nearly all qualify for free or reduced-price lunch. The student body is predominantly Black, with smaller shares of Hispanic and multiracial students; Asian and white enrollment is minimal.
The school's academic performance is substantially below state norms across tested grades and subjects. In mathematics, less than one in five students scored at proficient or above on the Pennsylvania System of School Assessment. In English language arts, about three in ten students met proficiency. Science results from the prior year showed about half the students proficient, though data from the current year was not available for that subject. These results place the school well below grade-level expectations and signal that many students are working significantly behind. A parent considering this school would want to understand the school's specific instructional approach to math and reading, what interventions are in place for struggling learners, and what trajectory the school is on in closing these gaps.
The school's charter was renewed for a five-year term in June 2025, but with conditions attached. The Charter Schools Office categorized Mastery Prep as "approaching" academic success standards rather than meeting them. This formal finding indicates that while the school operates in good standing on compliance and sustainability measures, its academic progress remains a concern. The renewal carries the school's operating license through 2030 and signals that the school and its authorizers view improvement as both necessary and possible.
Mastery Prep recently expanded to include sixth grade, extending its grade span from K-5 to K-6. The school is part of the broader Mastery Schools network, which operates elementary, middle, and high schools in Philadelphia. Students can advance from Mastery Prep to Gratz Prep Middle and Simon Gratz High School, creating a pathway for families who want to stay within the same organization through twelfth grade. The network has undertaken a five-year strategic plan called Plan 2029 and received federal funding to expand classroom libraries and strengthen literacy instruction, suggesting a deliberate focus on reading improvement across the system.
The neighborhood surrounding the school, West Philadelphia near Pike Street in the 19140 ZIP code, is part of the broader city. Philadelphia's housing market shows modest values for the ZIP code, well below state averages, reflecting the area's economic profile. The city itself is walkable with extensive public transit and a growing downtown, though that growth is concentrated in Center City and pockets like University City rather than uniformly across all neighborhoods.
Mastery Prep serves a community with very high poverty and predominantly Black enrollment. For families seeking a charter option in North Philadelphia with a structured K-12 pathway and current attention to literacy work, the school exists in that market. For families whose priority is immediate strong test results or a school already performing at or above state averages, the current academic data would likely steer them elsewhere. The conditional charter renewal reflects genuine work ahead rather than an accidental shortfall; parents should use that as a prompt to ask the school directly what changes are underway and what timeline they expect for improvement.
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