Oso Grande Elementary: More than half of kids exceed the standard. But this year's 5th graders test below its 3rd graders.

Oso Grande Elementary has a Scope Score of 75 out of 100, placing it in the 94th percentile of California elementary schools and ranked #337 statewide. 56.7% of students exceeded the state standard on the 2025 CAASPP assessment, which is 35.4 percentage points above the California average of 21.3%. The Scope Score weights six dimensions for elementary schools: exceeded standard (43%), met or exceeded (22%), grade 3-to-5 growth (15%), chronic absenteeism (10%), ELPAC English Learner proficiency (5%), and suspension rate (5%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.

On the 2025 CAASPP Smarter Balanced Assessment, 81.0% of students at Oso Grande Elementary met or exceeded the state standard in ELA and Math combined, and 56.7% exceeded it. The gap between those numbers matters: 24.3% of students are at the proficiency floor, while 56.7% pushed past it. Most rating sites report only the combined "proficient" number. SchoolScope surfaces the exceeded-vs-met split because it reveals whether a school's curriculum challenges students beyond minimum proficiency or paces toward it. 902 student-subject combinations were assessed.

Oso Grande Elementary ranks #337 among California elementary schools by Scope Score, placing it in the 94th percentile. This ranking is based on a weighted composite of 2025 CAASPP test performance (exceeded and met rates), grade-level growth (Grade 3 to grade 5 growth), chronic absenteeism, and suspension rate. Unlike single-number ratings, the Scope Score shows what drives the ranking so parents can decide what matters most to their family. See full methodology.

Based on 2025 CAASPP data, proficiency at Oso Grande Elementary decreases by 12.3 percentage points from Grade 3 to grade 5 growth. This downward pattern doesn't necessarily mean the school is failing — it can reflect cohort differences, demographic shifts, or curriculum changes. A campus visit and conversation with teachers can reveal what the numbers can't. Growth trajectory is weighted at 15% in the elementary Scope Score because it measures what the school does, not just who walks in the door.

9.3% of students at Oso Grande Elementary are chronically absent (missing 10% or more of school days), which is better than the California average of 17.9%. The suspension rate is 1.1%, indicating a low-discipline-incident environment. SchoolScope includes these culture metrics in the Scope Score because they reflect day-to-day school experience in ways test scores alone cannot.

Oso Grande Elementary scores 75/100 (94th percentile) among California elementary schools. To compare with nearby schools, SchoolScope shows the same metrics side by side: exceeded rate, proficiency, growth trajectory, and school culture indicators. The school serves 867 students. Use the schools in Ladera Ranch page or the map view to compare all elementary schools nearby.

At Oso Grande Elementary in Ladera Ranch, 78.1% of low-income students met or exceeded the ELA standard in 2025, compared to 55.1% district-wide and 38.2% statewide. Oso Grande Elementary outperforms its district average for low-income students by 23.0 percentage points in ELA. Other subgroups: Low-Income students (71.9% Math proficient); White students (81.3% ELA proficient). The largest proficiency gap is 16.9 percentage points for disabilities students. Data source: California Department of Education, CAASPP 2024-25. 64 students tested. SchoolScope shows disaggregated test scores by demographic subgroup so you can see how a school performs for your child's specific group — not just the school-wide average. Subgroup data is context, not part of the Scope Score: we don't penalize schools for who they serve. See our equity approach.