Jackson Street 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 8.

5th The average 5th grader scores 14 points under the grade 3 bar. 2422 vs. 2436. The 5th-grade bar is 2528.
6th The average 6th grader scores 17 points under the grade 4 bar. 2468 vs. 2485. The 6th-grade bar is 2552.
7th The average 7th grader scores 29 points under the grade 4 bar. 2456 vs. 2485. The 7th-grade bar is 2567.
8th The average 8th grader scores 16 points under the grade 4 bar. 2469 vs. 2485. The 8th-grade bar is 2586.

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
4	92,562	2454.4	− 2485	−30.6	× 102 / 488	−6.4
5	92,565	2467.3	− 2528	−60.7	× 99 / 488	−12.3
6	92,566	2527.6	− 2552	−24.4	× 96 / 488	−4.8
7	92,569	2522.2	− 2567	−44.8	× 103 / 488	−9.5
8	92,570	2582.1	− 2586	−3.9	× 88 / 488	−0.7
Sum, rounded to a whole point						−34

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	86,004	2454.8	− 2485	−30.2	× 109 / 481	−6.8
5	86,007	2458.8	− 2528	−69.2	× 104 / 481	−15
6	86,009	2502.8	− 2552	−49.2	× 90 / 481	−9.2
7	86,011	2562.5	− 2567	−4.5	× 93 / 481	−0.9
8	86,012	2576.4	− 2586	−9.6	× 85 / 481	−1.7
Sum, rounded to a whole point						−34

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	88,368	2438.1	− 2485	−46.9	× 117 / 517	−10.6
5	88,369	2454.3	− 2528	−73.7	× 120 / 517	−17.1
6	88,371	2506.6	− 2552	−45.4	× 101 / 517	−8.9
7	88,373	2545.2	− 2567	−21.8	× 94 / 517	−4
8	88,375	2598.7	− 2586	12.7	× 85 / 517	2.1
Sum, rounded to a whole point						−38

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	88,598	2451.6	− 2485	−33.4	× 117 / 548	−7.1
5	88,600	2460.2	− 2528	−67.8	× 111 / 548	−13.7
6	88,602	2467.8	− 2552	−84.2	× 119 / 548	−18.3
7	88,605	2529.3	− 2567	−37.7	× 101 / 548	−6.9
8	88,606	2582.9	− 2586	−3.1	× 100 / 548	−0.6
Sum, rounded to a whole point						−47

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	89,231	2446.9	− 2485	−38.1	× 107 / 539	−7.6
5	89,232	2469.8	− 2528	−58.2	× 114 / 539	−12.3
6	89,233	2464.5	− 2552	−87.5	× 109 / 539	−17.7
7	89,234	2501.7	− 2567	−65.3	× 112 / 539	−13.6
8	89,235	2561.2	− 2586	−24.8	× 97 / 539	−4.5
Sum, rounded to a whole point						−56

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	87,409	2419.5	− 2485	−65.5	× 102 / 449	−14.9
5	87,410	2421.9	− 2528	−106.1	× 74 / 449	−17.5
6	87,411	2444.1	− 2552	−107.9	× 96 / 449	−23.1
7	87,412	2468.0	− 2567	−99	× 85 / 449	−18.7
8	87,413	2487.2	− 2586	−98.8	× 92 / 449	−20.2
Sum, rounded to a whole point						−94

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	89,483	2425.7	− 2485	−59.3	× 82 / 441	−11
5	89,484	2439.2	− 2528	−88.8	× 103 / 441	−20.7
6	89,485	2440.8	− 2552	−111.2	× 63 / 441	−15.9
7	89,486	2467.8	− 2567	−99.2	× 98 / 441	−22
8	89,487	2483.1	− 2586	−102.9	× 95 / 441	−22.2
Sum, rounded to a whole point						−92

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	89,365	2413.0	− 2485	−72	× 88 / 402	−15.8
5	89,366	2454.4	− 2528	−73.6	× 77 / 402	−14.1
6	89,367	2448.7	− 2552	−103.3	× 98 / 402	−25.2
7	89,368	2459.5	− 2567	−107.5	× 52 / 402	−13.9
8	89,369	2493.3	− 2586	−92.7	× 87 / 402	−20.1
Sum, rounded to a whole point						−89

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	89,346	2447.4	− 2485	−37.6	× 93 / 422	−8.3
5	89,347	2438.5	− 2528	−89.5	× 87 / 422	−18.5
6	89,348	2448.1	− 2552	−103.9	× 78 / 422	−19.2
7	89,349	2467.3	− 2567	−99.7	× 103 / 422	−24.3
8	89,350	2451.2	− 2586	−134.8	× 61 / 422	−19.5
Sum, rounded to a whole point						−90

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	89,052	2414.6	− 2485	−70.4	× 83 / 432	−13.5
5	89,053	2454.0	− 2528	−74	× 96 / 432	−16.4
6	89,054	2468.7	− 2552	−83.3	× 80 / 432	−15.4
7	89,055	2479.6	− 2567	−87.4	× 77 / 432	−15.6
8	89,056	2496.8	− 2586	−89.2	× 96 / 432	−19.8
Sum, rounded to a whole point						−81

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	88,742	2422.0	− 2528	−106	× 75 / 306	−26
6	88,743	2467.7	− 2552	−84.3	× 86 / 306	−23.7
7	88,744	2455.9	− 2567	−111.1	× 75 / 306	−27.2
8	88,745	2469.3	− 2586	−116.7	× 70 / 306	−26.7
Sum, rounded to a whole point						−104

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −34, −34, −38, −47, −56, −94, −92, −89, −90, −81, −104 → −69
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: 4 · 2017→2018: 9 · 2018→2019: 9 · 2019→2021: 38 · 2021→2022: 2 · 2022→2023: 3 · 2023→2024: 1 · 2024→2025: 9 · 2025→2026: 23 → average 9.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.8 × 2.66 = 26.1. Upper limit −42.9, lower limit −95.1.

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.