Luther Burbank Elementary: math

The shaded band is this school's normal range. If nothing about how it works changes, nearly every future year should land inside it. Zero means the typical student just meets the state standard. The small numbers under the years are how many students were tested.

Measured against the grade bars

The state's math test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 6.

Many students here are still learning English. The math test is written in English, with some translation help, and many of its questions are word problems. In 2026, 136 of the 242 students who took the math test were English learners.

All students

3rd The average 3rd grader scores 92 points under the grade 3 bar. 2344 vs. 2436.
4th The average 4th grader scores 35 points under the grade 3 bar. 2401 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores 27 points under the grade 3 bar. 2410 vs. 2436. The 5th-grade bar is 2528.
6th The average 6th grader scores 38 points under the grade 4 bar. 2447 vs. 2485. The 6th-grade bar is 2552.

Students fluent in English

Math with English out of the way. Includes students who have only ever spoken English.

Grade bars 3rd 18 students 74 points under the grade 3 bar. 4th 24 students 25 points under the grade 3 bar. 5th 29 students 44 points under the grade 4 bar. 6th 35 students 19 points under the grade 5 bar.

English learners

Students leave this group as they become fluent, so its average stays low even where they learn well.

Grade bars 3rd 34 students 102 points under the grade 3 bar. 4th 35 students 41 points under the grade 3 bar. 5th 28 students 59 points under the grade 3 bar. 6th 39 students 45 points under the grade 3 bar.

the group's average that grade's own bar the distance between

2026 results. "Meets standard" is the state's mark for being on track for that grade. The state leaves out any group of ten students or fewer, so a grade may be missing from the charts.

Step 1 · Each year's result

For each grade tested, take the average (mean) scale score from the California Department of Education's results file, and subtract the lowest score that counts as "Standard Met" for that grade. That is the grade's distance from standard. Weight each grade by its share of the students tested, then add the grades up. Grades where the state hides the average because ten or fewer students tested are left out entirely.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,151	2358.7	− 2436	−77.3	× 76 / 270	−21.8
4	95,152	2406.5	− 2485	−78.5	× 65 / 270	−18.9
5	95,155	2446.1	− 2528	−81.9	× 65 / 270	−19.7
6	95,156	2465.7	− 2552	−86.3	× 64 / 270	−20.5
Sum, rounded to a whole point						−81

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,376	2391.7	− 2436	−44.3	× 53 / 259	−9.1
4	88,377	2398.6	− 2485	−86.4	× 72 / 259	−24
5	88,380	2432.3	− 2528	−95.7	× 69 / 259	−25.5
6	88,382	2464.4	− 2552	−87.6	× 65 / 259	−22
Sum, rounded to a whole point						−81

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,934	2380.4	− 2436	−55.6	× 72 / 248	−16.1
4	90,937	2426.2	− 2485	−58.8	× 48 / 248	−11.4
5	90,939	2402.9	− 2528	−125.1	× 66 / 248	−33.3
6	90,941	2461.8	− 2552	−90.2	× 62 / 248	−22.6
Sum, rounded to a whole point						−83

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,790	2379.3	− 2436	−56.7	× 56 / 226	−14
4	91,791	2427.2	− 2485	−57.8	× 56 / 226	−14.3
5	91,792	2433.2	− 2528	−94.8	× 73 / 226	−30.6
6	91,793	2471.6	− 2552	−80.4	× 41 / 226	−14.6
Sum, rounded to a whole point						−74

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,036	2340.6	− 2436	−95.4	× 37 / 182	−19.4
4	92,037	2406.3	− 2485	−78.7	× 47 / 182	−20.3
5	92,038	2403.3	− 2528	−124.7	× 46 / 182	−31.5
6	92,039	2459.3	− 2552	−92.7	× 52 / 182	−26.5
Sum, rounded to a whole point						−98

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,948	2359.4	− 2436	−76.6	× 31 / 164	−14.5
4	91,949	2409.5	− 2485	−75.5	× 36 / 164	−16.6
5	91,950	2434.0	− 2528	−94	× 44 / 164	−25.2
6	91,951	2436.0	− 2552	−116	× 53 / 164	−37.5
Sum, rounded to a whole point						−94

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,877	2354.2	− 2436	−81.8	× 41 / 152	−22.1
4	91,878	2386.2	− 2485	−98.8	× 33 / 152	−21.5
5	91,879	2419.3	− 2528	−108.7	× 36 / 152	−25.7
6	91,880	2439.1	− 2552	−112.9	× 42 / 152	−31.2
Sum, rounded to a whole point						−100

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,587	2380.4	− 2436	−55.6	× 36 / 143	−14
4	91,588	2395.8	− 2485	−89.2	× 42 / 143	−26.2
5	91,589	2408.9	− 2528	−119.1	× 31 / 143	−25.8
6	91,590	2455.1	− 2552	−96.9	× 34 / 143	−23
Sum, rounded to a whole point						−89

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,236	2343.7	− 2436	−92.3	× 52 / 242	−19.8
4	91,237	2401.3	− 2485	−83.7	× 59 / 242	−20.4
5	91,238	2409.5	− 2528	−118.5	× 57 / 242	−27.9
6	91,239	2446.9	− 2552	−105.1	× 74 / 242	−32.1
Sum, rounded to a whole point						−100

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −81, −81, −83, −74, −98, −94, −100, −89, −100 → −88.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 0 · 2016→2017: 2 · 2017→2019: 9 · 2019→2022: 24 · 2022→2023: 4 · 2023→2024: 6 · 2024→2025: 11 · 2025→2026: 11 → average 8.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.4 × 2.66 = 22.3. Upper limit −66.6, lower limit −111.2.

Why 2.66? It is the standard factor from quality control, the work of Walter Shewhart and W. Edwards Deming. It turns "how much the result typically changes in a year" into "how far it can wander by chance alone".

Years with no result (no state tests were given in spring 2020) are skipped: the year-to-year change runs from the last year with a result to the next one.

Step 3 · Free or reduced-price meals

The share of enrolled students eligible for free or reduced-price meals. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.