BASIS Charter Schools Inc.

BASIS Charter Schools Inc. has one listed elementary school in Arizona: BASIS Scottsdale Primary - East Campus, which serves kindergarten through grade 5 and enrolls 489 students. The school’s 2025–2026 proficiency results are well above Arizona’s in both subjects: 81% in English Language Arts (ELA), compared with 41% statewide, and 82% in mathematics, compared with 33%. The most important finding is that the school exceeds the state by 40 percentage points in ELA and 49 points in mathematics.

With only one school in the list, there is no school-to-school leader or lowest performer; instead, BASIS Scottsdale Primary - East Campus stands out against state results. Its advantage appears across the reported grades as well: in grade 3, ELA proficiency is 76% versus 39% statewide and mathematics is 82% versus 38%; in grade 4, ELA is 84% versus 47% and mathematics is 81% versus 40%. The ELA gap is 37 points in both grades, while the mathematics gap is 44 points in grade 3 and 41 points in grade 4. Although the school’s all-grade percentages are nearly equal across subjects, its advantage over the state is 9 points larger in mathematics than ELA.

The grade-level results show different patterns by subject: ELA rises 8 points from grade 3 to grade 4 at both the school and statewide, keeping the gap steady, while the mathematics gap narrows from 44 to 41 points. SchoolDigger lists the school at 15 of 900 schools in 2025–2026, compared with 11 of 909 in 2024–2025 and 7 of 912 in 2023–2024; its listed percentile is now 98th, after 99th in the prior two years. These rankings describe relative position, not a measured change in test scores. The reported student–teacher ratio is 14.3 for 2024–2025, and no free/reduced-lunch percentage is reported. Because the list contains only one school, it cannot show how results relate to school context or vary among schools.