Douglas County Re 1 · Lone Tree · elementary (grades 3–5) and middle (grades 6–8)
Elementary grades (grades 3–5)
+0.7
scale-score points vs. expected (Eng + math avg.)
Compared with Colorado schools serving similar students, Lone Tree Elementary scored 0.3 points above expected in English and 1.1 points above expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 55th percentile statewide after adjusting for demographics (raw: 94th), and #18 of 44 neighborhood elementary schools in Douglas County Re 1. The difference is within normal year-to-year variation.
English vs. expected
+0.3
±3.3 pts · 55th pct. adjusted
English growth
64
median growth percentile · 72nd among look-alikes
Math vs. expected
+1.1
±3.0 pts · 57th pct. adjusted
Math growth
73
median growth percentile · 96th among look-alikes
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
−1.6
+1.2
+1.2
English growth (MGP)
68
64
60
Math vs. expected (pts)
−2.1
+2.1
+2.9
Math growth (MGP)
72
76
72
Only 90% of students took the tests; families who opt out may differ from those who test.
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)
+14.5
scale-score points vs. expected (Eng + math avg.)
Compared with Colorado schools serving similar students, Lone Tree Elementary scored 11.7 points above expected in English and 17.4 points above expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 90th percentile statewide after adjusting for demographics (raw: 98th), and #8 of 39 neighborhood middle schools in Douglas County Re 1.
English vs. expected
+11.7
±6.7 pts · 90th pct. adjusted
English growth
—
median growth percentile
Math vs. expected
+17.4
±6.6 pts · 96th pct. adjusted
Math growth
—
median growth percentile
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
+14.3
+12.8
+8.3
English growth (MGP)
—
—
—
Math vs. expected (pts)
+21.8
+18.5
+12.2
Math growth (MGP)
—
—
—
Only 84% of students took the tests; families who opt out may differ from those who test.
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): 7.6× the poverty line. Enrollment (K–12): 355. 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.