Douglas County Re 1 · Lone Tree · elementary (grades 3–5) and middle (grades 6–8)
Elementary grades (grades 3–5)
+3.6
scale-score points vs. expected (Eng + math avg.)
Compared with Colorado schools serving similar students, Eagle Ridge Elementary School scored 3.9 points above expected in English and 3.3 points above expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 71st percentile statewide after adjusting for demographics (raw: 77th), and #12 of 44 neighborhood elementary schools in Douglas County Re 1.
English vs. expected
+3.9
±2.9 pts · 71st pct. adjusted
English growth
53
median growth percentile · 28th among look-alikes
Math vs. expected
+3.3
±2.3 pts · 68th pct. adjusted
Math growth
55
median growth percentile · 40th among look-alikes
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
+1.1
+3.3
+7.3
English growth (MGP)
49
50
60
Math vs. expected (pts)
+0.8
+4.3
+4.8
Math growth (MGP)
52
57
56
Only 85% 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)
+9.7
scale-score points vs. expected (Eng + math avg.)
Compared with Colorado schools serving similar students, Eagle Ridge Elementary School scored 7.7 points above expected in English and 11.7 points above expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 80th percentile statewide after adjusting for demographics (raw: 83rd), and #15 of 39 neighborhood middle schools in Douglas County Re 1.
English vs. expected
+7.7
±5.8 pts · 80th pct. adjusted
English growth
—
median growth percentile
Math vs. expected
+11.7
±5.2 pts · 91st pct. adjusted
Math growth
—
median growth percentile
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
+13.4
+7.2
+1.4
English growth (MGP)
—
—
—
Math vs. expected (pts)
+14.4
+15.0
+5.2
Math growth (MGP)
—
—
—
Only 86% 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): 7.0× the poverty line. Enrollment (K–12): 541. 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.