English: Proficient or Advanced
Grades 3–5, spring 2026
- Plummer
- 31%Advanced: 10%
- Lassen
- Clearly ahead: 42%Advanced: 14%
- California
- 46%Advanced: 24%
Compare · elementary
Plummer and Lassen
Lassen is at the 52nd percentile and Plummer the 47th among California elementary schools we score (spring 2026 tests). Lassen’s English (reading and writing) and math results are clearly higher.
Plummer 47th
Lassen 52nd
California’s public elementary schools · 1 dot = 1 in 100
Needs Support25 in 100Developing25 in 100Solid25 in 100Strong25 in 100
Plummer 47th
Lassen 52nd
California’s public elementary schools · 1 dot = 1 in 100
Needs Support25 in 100Developing25 in 100Solid25 in 100Strong25 in 100
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How do their test results compare?
From spring 2026, the state calls its top two levels “Proficient or Advanced” (formerly “Met or Exceeded”). marks a figure clearly ahead of the other school. California: the same grades statewide.
Math: Proficient or Advanced
Grades 3–5, spring 2026
- Plummer
- 29%Advanced: 11%
- Lassen
- Clearly ahead: 42%Advanced: 12%
- California
- 42%Advanced: 21%
Do students show up and stay in class?
Average school: the average California elementary school we score.
Chronically absent
Missed 10% or more of school days · 2025–26 school year
- Plummer
- 27 in 100152 of 565 students
- Lassen
- 23 in 10092 of 395 students
- Average school
- 17 in 100
Suspended at least once
2025–26 school year
- Plummer
- 0 of 572 students enrolled at any point in the year
- Lassen
- 0 of 400 students enrolled at any point in the year
- Average school
- 1.6%
How did results compare with what the state expected?
The state’s matched growth measure compares each student’s results with what the state expected from their earlier scores.
State growth measure, points vs expected
Spring 2025 · students with scores in both years
- Plummer
- +20 pts English +4 pts mathGrades 4–6 · The state calls them Exceptional in English and Average in math · 203 students
- Lassen
- −8 pts English −8 pts mathGrades 4–5 · The state calls both Moderate · 123 students
How are they scored, who runs them, and how big are they?
Percentile among California elementary schools, with the Scope Score
Spring 2026 tests
- Plummer
- 47th percentileDevelopingScope Score 34
- Lassen
- 52nd percentileSolidScope Score 36
Who runs the school
- Plummer
- Los Angeles Unified
- Lassen
- Los Angeles Unified
Teachers in their first year
2024–25 school year
- Plummer
- 3%
- Lassen
- 5%
Average years of teaching experience
2024–25 school year
- Plummer
- 18
- Lassen
- 16
Size, grades and staffing help you picture the school. A staffing ratio is not class size.
Students per teacher
Public schools: federal school directory, 2024–25 · a staffing ratio, not class size
- Plummer
- 19
- Lassen
- 20
Grades offered
- Plummer
- TK–6
- Lassen
- TK–5
Sources and definitions
Test results are from California’s state tests (CAASPP), spring 2026: the share of students tested in the level’s grades who scored Proficient or Advanced, per subject. California’s figure is our combination of the state’s published rows for the same grades. A ✓ marks a figure ahead of the others by more than twice the margin of error (on chronic absence, ahead means lower). Chronic absence and suspensions are the California Department of Education’s 2025–26 counts; “chronically absent” means a student missed 10% or more of school days. The absence and suspension references are the average California school we score at these schools’ level, each school counted once. The state growth measure is points above or below what the state expected from these students’ earlier scores, for grades 4–8, from the state’s spring 2025 release. Students per teacher is from the federal school directory, 2024–25, which also lists enrollment: Plummer Elementary 600; Lassen Elementary 412. Teacher experience is the California Department of Education’s staffing file for the school year shown (teachers only).