Grade Trends

William Tell Aggeler Opportunity High

Grades 7–12 Public Alternative District: Los Angeles Unified

21050 Plummer St., Chatsworth, CA 91311 Map

Math (met standard)
6%
−26 state 32% · 2025-26
English (met standard)
0%
−57 state 57% · 2025-26
Science (met standard)
0%
state — · 2024-25
Low income
95%
free or reduced-price lunch
Students
61
2024-25
Students per teacher
10.0
2024-25

Test score trends

Share of students who met or exceeded the state standard each year.

Latest results by grade

Grade Math English Science
Grade 8 0% state 37% · 2018-19 0% state 49% · 2018-19 0% state 31% · 2018-19
Grade 11 0% state 32% · 2025-26 0% state 57% · 2025-26 —
All grades 6% state 32% · 2025-26 0% state 57% · 2025-26 0% state — · 2024-25
Results by year (all grades)
School year Math English Science
2025-26 6% state 32% 0% state 57% —
2024-25 0% state 31% 0% state 57% 0%
2023-24 0% state 28% 0% state 56% 0%
2022-23 0% state 27% 3% state 55% 5%
2021-22 — — 0%
2018-19 0% state 35% 3% state 53% 3% state 31%
2017-18 0% state 34% 0% state 53% —
2016-17 0% state 32% 10% state 60% —
2015-16 3% state 34% 0% state 54% —
2014-15 0% state 33% 7% state 50% —

Graduation & college

4-year graduation rate
59%
state 88% · 2025-26
Graduates meeting UC/CSU (A–G)
30%
state 55% · 2025-26

Graduation rate: students who earned a regular diploma within four years. UC/CSU: share of graduates who completed the A–G courses required by the University of California and California State University. College-going: share of high school completers who enrolled in any college within 12 months.

Students

Race and ethnicity, 2024-25

Year-by-year history is loaded from the NCES Common Core of Data (2017-18 onward).

Nearby schools

Subject percentages show the share of students who met or exceeded the state standard.

Pick to compare
Aggeler Community Day
Grades 7–12 Alternative · Los Angeles Unified
0.0 mi
17%
−18 vs state · 2020-21
36%
−23 vs state · 2020-21
4%
−24 vs state · 2018-19
24% Average of math, English and science: 3% in 2017-18 → 27% in 2020-21 87% 23 Hispanic 83%
Stoney Point Continuation
Grades 9–12 Alternative · Los Angeles Unified
0.7 mi
2%
−30 vs state
9%
−48 vs state
5%
−33 vs state
Average of math, English and science: 6% in 2022-23 → 5% in 2025-26 94% 105 Hispanic 80%
Ernest Lawrence Middle
Grades 6–8 · Los Angeles Unified
0.8 mi
39%
+2 vs state
51%
+2 vs state
40%
+5 vs state
7% Average of math, English and science: 36% in 2022-23 → 43% in 2025-26 70% 1,076 Hispanic 57%
Chatsworth Charter High
Grades 9–12 Charter · Los Angeles Unified
0.8 mi
40%
+8 vs state
58%
±0 vs state
41%
+3 vs state
17% Average of math, English and science: 29% in 2022-23 → 46% in 2025-26 69% 1,743 Hispanic 60%
Our Community Charter
Grades K–8 Charter · Our Community Charter District
1.8 mi
51%
+11 vs state
55%
+7 vs state
47%
+12 vs state
Average of math, English and science: 53% in 2022-23 → 51% in 2025-26 29% 434 White 43%
CDS Elementary
Grades K–6 Alternative · Los Angeles Unified
1.8 mi
0%
33%
— Not enough years of data — 3 Hispanic 33%
Citizens of the World Charter School West Valley
Grades K–8 Charter · Citizens of the World Charter School West Valley District
2.3 mi
45%
+4 vs state
45%
−2 vs state
41%
+6 vs state
29% Average of math, English and science: 74% in 2022-23 → 45% in 2025-26 43% 409 White 35%
Alfred B. Nobel Charter Middle
Grades 6–8 Charter · Los Angeles Unified
2.3 mi
67%
+30 vs state
74%
+25 vs state
60%
+25 vs state
9% Average of math, English and science: 58% in 2022-23 → 67% in 2025-26 57% 1,784 Hispanic 47%
Canoga Park Middle
Grades 6–8 · Los Angeles Unified
2.4 mi
15%
−22 vs state
22%
−27 vs state
17%
−19 vs state
Average of math, English and science: 16% in 2022-23 → 18% in 2025-26 92% 579 Hispanic 84%
Multicultural Learning Center
Grades K–8 Charter · Multicultural Learning Center District
2.5 mi
38%
−1 vs state
43%
−5 vs state
32%
−3 vs state
10% Average of math, English and science: 28% in 2022-23 → 38% in 2025-26 60% 496 Hispanic 86%