White Oak 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 5.

3rd The average 3rd grader meets the grade 3 bar. 2461 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2506 vs. 2485.
5th The average 5th grader scores 21 points under the grade 5 bar. 2507 vs. 2528.

2026 results. "Meets standard" is the state's mark for being on track for that grade.

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	104,253	2447.6	− 2436	11.6	× 75 / 319	2.7
4	104,254	2477.4	− 2485	−7.6	× 77 / 319	−1.8
5	104,257	2504.4	− 2528	−23.6	× 101 / 319	−7.5
6	104,258	2538.2	− 2552	−13.8	× 66 / 319	−2.9
Sum, rounded to a whole point						−9

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	96,852	2432.7	− 2436	−3.3	× 70 / 272	−0.8
4	96,853	2491.8	− 2485	6.8	× 72 / 272	1.8
5	96,856	2506.8	− 2528	−21.2	× 73 / 272	−5.7
6	96,858	2517.8	− 2552	−34.2	× 57 / 272	−7.2
Sum, rounded to a whole point						−12

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,651	2442.4	− 2436	6.4	× 62 / 251	1.6
4	99,653	2452.0	− 2485	−33	× 73 / 251	−9.6
5	99,655	2509.2	− 2528	−18.8	× 76 / 251	−5.7
6	99,656	2526.3	− 2552	−25.7	× 40 / 251	−4.1
Sum, rounded to a whole point						−18

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,809	2428.1	− 2436	−7.9	× 74 / 250	−2.3
4	99,812	2473.4	− 2485	−11.6	× 61 / 250	−2.8
5	99,813	2517.9	− 2528	−10.1	× 66 / 250	−2.7
6	99,816	2517.2	− 2552	−34.8	× 49 / 250	−6.8
Sum, rounded to a whole point						−15

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,475	2459.9	− 2436	23.9	× 60 / 228	6.3
4	100,476	2474.1	− 2485	−10.9	× 73 / 228	−3.5
5	100,477	2528.5	− 2528	0.5	× 63 / 228	0.1
6	100,478	2512.9	− 2552	−39.1	× 32 / 228	−5.5
Sum, rounded to a whole point						−3

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	98,336	2420.5	− 2436	−15.5	× 53 / 201	−4.1
4	98,337	2456.1	− 2485	−28.9	× 56 / 201	−8.1
5	98,338	2519.2	− 2528	−8.8	× 54 / 201	−2.4
6	98,339	2501.6	− 2552	−50.4	× 38 / 201	−9.5
Sum, rounded to a whole point						−24

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,714	2449.8	− 2436	13.8	× 55 / 186	4.1
4	100,715	2485.0	− 2485	0	× 58 / 186	0
5	100,716	2493.8	− 2528	−34.2	× 52 / 186	−9.6
6	100,717	2546.6	− 2552	−5.4	× 21 / 186	−0.6
Sum, rounded to a whole point						−6

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,548	2405.0	− 2436	−31	× 58 / 195	−9.2
4	100,549	2483.7	− 2485	−1.3	× 55 / 195	−0.4
5	100,550	2491.4	− 2528	−36.6	× 59 / 195	−11.1
6	100,551	2439.9	− 2552	−112.1	× 23 / 195	−13.2
Sum, rounded to a whole point						−34

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,423	2421.7	− 2436	−14.3	× 59 / 185	−4.6
4	100,424	2489.3	− 2485	4.3	× 59 / 185	1.4
5	100,425	2512.2	− 2528	−15.8	× 53 / 185	−4.5
6	100,426	2475.8	− 2552	−76.2	× 14 / 185	−5.8
Sum, rounded to a whole point						−13

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	100,092	2460.1	− 2436	24.1	× 54 / 176	7.4
4	100,093	2482.9	− 2485	−2.1	× 61 / 176	−0.7
5	100,094	2524.4	− 2528	−3.6	× 61 / 176	−1.2
Sum, rounded to a whole point						5

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	99,753	2461.0	− 2436	25	× 51 / 168	7.6
4	99,754	2505.7	− 2485	20.7	× 53 / 168	6.5
5	99,755	2507.0	− 2528	−21	× 64 / 168	−8
Sum, rounded to a whole point						6

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −9, −12, −18, −15, −3, −24, −6, −34, −13, 5, 6 → −11.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 3 · 2016→2017: 6 · 2017→2018: 3 · 2018→2019: 12 · 2019→2021: 21 · 2021→2022: 18 · 2022→2023: 28 · 2023→2024: 21 · 2024→2025: 18 · 2025→2026: 1 → average 13.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.1 × 2.66 = 34.8. Upper limit 23.6, lower limit −46.

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.