The top reported proficiency rate is 29% in English language arts. The lowest is 20% in Science.
Original Research by School Decision on Acero Chtr - Octavio Paz Elem Sch
Acero Charter Octavio Paz Elementary is a small charter serving kindergarten through eighth grade in Chicago's Pilsen neighborhood, with an enrollment around the level of a single-building elementary school. The student body is predominantly Hispanic; nearly all students are from this background. The school sits within Chicago Public Schools District 299, operates as a regular public charter school, and is part of the Acero Schools Network.
The current state test data shows math and English language arts proficiency across grades three through eight. Most results cluster in a narrow band. Grade four through eight math proficiency ranges from roughly a quarter to around half, with grade six notably lower at less than one in ten students meeting proficiency. Grade four ELA sits at roughly one in five students proficient, with grades five through eight ranging from roughly one in four to one in two. Grade five and eight science proficiency both sit at one in five. Grade three data for math and ELA was not reported, likely due to assessment changes that year. The school's overall proficiency index places it in the bottom quartile among Cook County districts, according to publicly reported comparisons.
A parent should understand that these results indicate students are not meeting state benchmarks at high rates. The school's proficiency pattern shows variability by grade; students in seventh grade perform notably better in both subjects than those in sixth grade, where performance dips markedly. A parent may want to look into the school's instructional practices, staffing transitions, and support systems to understand whether this variance reflects classroom composition, curriculum implementation, or other factors. The school's participation rate in testing is strong across grades, so the data reflects student performance rather than opt-out patterns.
The school operates within a district undergoing significant structural and pedagogical change. CPS transitioned in late 2024 and 2025 from a mayor-appointed board to one elected by voters, fundamentally shifting governance authority; all seats will be elected as of 2027. The district adopted a five-year strategic plan called "Together We Rise" that is moving away from school-choice policies and toward strengthening neighborhood schools, which marks a long-term shift in how the district allocates resources and frames its mission. CPS also launched new school accountability dashboards in late 2024, replacing numeric school ratings with holistic metrics that include school experience and resources, not just test scores. Additionally, the district deployed Skyline, a PreK-12 universal curriculum spanning English language arts, math, science, social science, languages, and arts, available to all district schools at no cost.
The Pilsen neighborhood, where the school is located, sits on Chicago's near southwest side. Chicago itself is a large, dense city with 77 community areas and hundreds of neighborhoods, combining a downtown central business district with residential neighborhoods of distinct character. The city is one of the nation's most walkable; it ranks sixth nationally and holds Gold Walk Score status. The Chicago Transit Authority runs eight 'L' rail lines and roughly 200 bus routes with 24-hour service on some lines, a rarity that places Chicago among only three cities worldwide offering round-the-clock train service every day. The economy is highly diversified, anchored by major employers including JPMorgan Chase, Exelon, the University of Chicago, Boeing, Abbott Laboratories, Allstate, and the federal government, along with sectors in finance, healthcare, life sciences, technology, and manufacturing.
Chicago's housing market in the Pilsen area and the 60608 zip code where the school sits shows a median home value in the mid-range for the county and median monthly rental costs that have risen modestly. Housing approvals across Chicago have been rising, with recent completions concentrated downtown and along the North Lakefront, though the Near West Side has led neighborhood approvals. After nearly a decade of population decline, Chicago added a substantial population gain from mid-2023 to mid-2024 and has grown for three straight years; the metro area now reaches approximately 9.7 million residents, reversing years of domestic outflow.
Acero Charter Octavio Paz serves a specific population: a small, almost entirely Spanish-speaking Hispanic community. The school's grade band spans both elementary and middle years, offering families a K-8 pathway under one roof, which eliminates a transition between schools. As a charter, the school sits within CPS but operates independently on curriculum and staffing, though it participates in district assessments and accountability systems. Families choosing this school are opting for a charter model at a moment when the district is strategically re-emphasizing neighborhood school enrollment and have access to both the Skyline curriculum (if adopted) and the emerging accountability data now available through CPS dashboards. The test results suggest this is not a high-performing school by state standards, and a family considering enrollment should weigh this alongside the school's other features, including size, community composition, and any distinctive programs the school offers, information that was not included in the available data.
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