Summary
Dater Montessori School is a PK–6 elementary school serving 721 students at 2840 Boudinot Ave in Cincinnati’s Westwood area, part of Cincinnati Public Schools. For 2025-2026, it ranks 1,049 of 1,560 Ohio elementary schools — 33rd percentile, 2 stars — which is above its district’s 21st-percentile standing but below the state overall. Its long-run rank history shows a steep fall from the mid-70s in the mid-2010s to the low 30s, though the last three years are essentially flat (34 → 32 → 33), suggesting the decline has stabilized.
Its standout strengths are attendance and early literacy. Chronic absenteeism is 22.9%, the best in the nearby comparison group and less than half the district rate of 44.6%; however, it rose from 17.6% the year before, so it is worth monitoring. Third-grade English language arts proficiency is 85.9%, also best in the group and 22.5 points above Ohio and 27 points above the district, and it has improved every year. Third-grade math is strong at 63.5%. Among the 11 nearby schools with 2025-2026 ranks, it places third, behind Cheviot School and Covedale School but ahead of James N. Gamble Montessori Elementary School, Carson School, Westwood School, Midway School, and Roll Hill School.
The main weakness is upper-grade math. In 2025-2026, fourth-grade math was 31.6%, fifth was 30.2%, and sixth was 34.4%, below both district and state in most cases; fourth-grade math was 35.7 points below the state. A cohort tracked from third to sixth grade fell from 58.4% to 34.4% in math, a consistent fade after the early grades. The school also has a high student-teacher ratio of 19.4, second highest in the nearby group, a notable constraint for a Montessori program. Special education results improved from the 23rd to the 52nd percentile, while gifted and talented sits at the 11th percentile. Science has plateaued near 44%. Overall, the school offers strong early literacy and attendance, but upper-elementary math needs attention.
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