Compared with Colorado schools serving similar students, Boston K-8 School scored 2.7 points below expected in English and 6.6 points below expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 36th percentile statewide after adjusting for demographics (raw: 1st), and #19 of 30 neighborhood elementary schools in Adams-Arapahoe 28J.
English vs. expected
−2.7
±3.3 pts · 36th pct. adjusted
English growth
44
median growth percentile · 40th among look-alikes
Math vs. expected
−6.6
±3.0 pts · 18th pct. adjusted
Math growth
41
median growth percentile · 12th among look-alikes
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
−0.6
−5.2
−2.3
English growth (MGP)
52
37
42
Math vs. expected (pts)
−5.7
−9.5
−4.7
Math growth (MGP)
47
33
42
Among the 25 most similar schools statewide — English vs. expected (pts)
Most similar on neighborhood income and education, free/reduced lunch, English learners and special education. Blue: above expected; red: below; gray: within normal swings.
Middle grades (grades 6–8)
+6.6
scale-score points vs. expected (Eng + math avg.)
Compared with Colorado schools serving similar students, Boston K-8 School scored 7.4 points above expected in English and 5.9 points above expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 77th percentile statewide after adjusting for demographics (raw: 5th), and #8 of 16 neighborhood middle schools in Adams-Arapahoe 28J.
English vs. expected
+7.4
±4.0 pts · 77th pct. adjusted
English growth
51
median growth percentile · 74th among look-alikes
Math vs. expected
+5.9
±2.9 pts · 75th pct. adjusted
Math growth
46
median growth percentile · 32nd among look-alikes
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
+7.6
+3.2
+11.5
English growth (MGP)
41
50
63
Math vs. expected (pts)
+5.3
+6.8
+5.5
Math growth (MGP)
39
46
52
Among the 25 most similar schools statewide — English vs. expected (pts)
Most similar on neighborhood income and education, free/reduced lunch, English learners and special education. Blue: above expected; red: below; gray: within normal swings.
Who it serves
The measures behind the comparison
Bars: this school (the area around it for education). Black tick: average of Colorado elementary schools.
Neighborhood family income (families with children near the school, NCES): 2.2× the poverty line. Enrollment (K–12): 390. Education is for adults aged 25–44 — the ages most likely to be parents — because the Census doesn’t publish parents’ education below the district level.
How to read this
Each school’s CMAS scores are compared with what Colorado schools serving similar students score, using a model fit across all neighborhood schools. “Vs. expected” is in CMAS scale-score points; growth is CDE’s median growth percentile (50 is typical). Full method and caveats.