Jackson Academy of Music and Math (JAMM): 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.

All students

3rd The average 3rd grader meets the grade 3 bar. 2461 vs. 2436.
4th The average 4th grader scores just under the grade 4 bar. 2479 vs. 2485.
5th The average 5th grader scores 10 points under the grade 5 bar. 2518 vs. 2528.
6th The average 6th grader scores 11 points under the grade 6 bar. 2541 vs. 2552.
7th The average 7th grader meets the grade 7 bar. 2567 vs. 2567.
8th The average 8th grader meets the grade 8 bar. 2592 vs. 2586.

Students fluent in English

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

Grade bars 6th 87 students Meets the grade 6 bar.

English learners

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

Grade bars 6th 11 students Just 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	87,971	2447.1	− 2436	11.1	× 68 / 401	1.9
4	87,973	2494.2	− 2485	9.2	× 63 / 401	1.4
5	87,975	2489.9	− 2528	−38.1	× 58 / 401	−5.5
6	87,977	2518.9	− 2552	−33.1	× 86 / 401	−7.1
7	87,979	2551.5	− 2567	−15.5	× 80 / 401	−3.1
8	87,981	2571.3	− 2586	−14.7	× 46 / 401	−1.7
Sum, rounded to a whole point						−14

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,661	2449.7	− 2436	13.7	× 71 / 389	2.5
4	81,664	2486.6	− 2485	1.6	× 67 / 389	0.3
5	81,665	2517.9	− 2528	−10.1	× 61 / 389	−1.6
6	81,667	2512.1	− 2552	−39.9	× 57 / 389	−5.8
7	81,670	2572.7	− 2567	5.7	× 59 / 389	0.9
8	81,671	2562.0	− 2586	−24	× 74 / 389	−4.6
Sum, rounded to a whole point						−8

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	83,936	2433.7	− 2436	−2.3	× 77 / 424	−0.4
4	83,938	2499.4	− 2485	14.4	× 75 / 424	2.5
5	83,939	2519.2	− 2528	−8.8	× 76 / 424	−1.6
6	83,941	2554.4	− 2552	2.4	× 78 / 424	0.4
7	83,944	2547.4	− 2567	−19.6	× 57 / 424	−2.6
8	83,945	2582.1	− 2586	−3.9	× 61 / 424	−0.6
Sum, rounded to a whole point						−2

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,157	2468.1	− 2436	32.1	× 52 / 443	3.8
4	84,160	2484.1	− 2485	−0.9	× 82 / 443	−0.2
5	84,161	2524.5	− 2528	−3.5	× 93 / 443	−0.7
6	84,164	2533.8	− 2552	−18.2	× 83 / 443	−3.4
7	84,165	2576.4	− 2567	9.4	× 77 / 443	1.6
8	84,168	2527.3	− 2586	−58.7	× 56 / 443	−7.4
Sum, rounded to a whole point						−6

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,776	2463.0	− 2436	27	× 62 / 471	3.6
4	84,777	2489.8	− 2485	4.8	× 62 / 471	0.6
5	84,778	2517.8	− 2528	−10.2	× 91 / 471	−2
6	84,779	2542.5	− 2552	−9.5	× 94 / 471	−1.9
7	84,780	2567.1	− 2567	0.1	× 85 / 471	0
8	84,781	2583.6	− 2586	−2.4	× 77 / 471	−0.4
Sum, rounded to a whole point						0

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,945	2457.5	− 2436	21.5	× 59 / 457	2.8
4	84,946	2467.8	− 2485	−17.2	× 64 / 457	−2.4
5	84,947	2484.6	− 2528	−43.4	× 64 / 457	−6.1
6	84,948	2523.7	− 2552	−28.3	× 96 / 457	−5.9
7	84,949	2575.2	− 2567	8.2	× 85 / 457	1.5
8	84,950	2547.1	− 2586	−38.9	× 89 / 457	−7.6
Sum, rounded to a whole point						−18

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,878	2475.9	− 2436	39.9	× 60 / 464	5.2
4	84,879	2459.5	− 2485	−25.5	× 63 / 464	−3.5
5	84,880	2503.1	− 2528	−24.9	× 63 / 464	−3.4
6	84,881	2531.2	− 2552	−20.8	× 97 / 464	−4.3
7	84,882	2551.7	− 2567	−15.3	× 100 / 464	−3.3
8	84,883	2586.5	− 2586	0.5	× 81 / 464	0.1
Sum, rounded to a whole point						−9

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,873	2464.9	− 2436	28.9	× 59 / 494	3.5
4	84,874	2483.4	− 2485	−1.6	× 62 / 494	−0.2
5	84,875	2501.9	− 2528	−26.1	× 65 / 494	−3.4
6	84,876	2544.7	− 2552	−7.3	× 104 / 494	−1.5
7	84,877	2556.2	− 2567	−10.8	× 100 / 494	−2.2
8	84,878	2564.4	− 2586	−21.6	× 104 / 494	−4.5
Sum, rounded to a whole point						−8

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,567	2446.3	− 2436	10.3	× 57 / 489	1.2
4	84,568	2484.9	− 2485	−0.1	× 60 / 489	0
5	84,569	2530.8	− 2528	2.8	× 63 / 489	0.4
6	84,570	2538.5	− 2552	−13.5	× 101 / 489	−2.8
7	84,571	2577.9	− 2567	10.9	× 107 / 489	2.4
8	84,572	2578.0	− 2586	−8	× 101 / 489	−1.7
Sum, rounded to a whole point						−1

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,340	2460.7	− 2436	24.7	× 57 / 471	3
4	84,341	2479.3	− 2485	−5.7	× 59 / 471	−0.7
5	84,342	2518.3	− 2528	−9.7	× 61 / 471	−1.3
6	84,343	2540.9	− 2552	−11.1	× 98 / 471	−2.3
7	84,344	2567.3	− 2567	0.3	× 98 / 471	0.1
8	84,345	2591.9	− 2586	5.9	× 98 / 471	1.2
Sum, rounded to a whole point						0

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −14, −8, −2, −6, 0, −18, −9, −8, −1, 0 → −6.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 6 · 2016→2017: 6 · 2017→2018: 4 · 2018→2019: 6 · 2019→2022: 18 · 2022→2023: 9 · 2023→2024: 1 · 2024→2025: 7 · 2025→2026: 1 → average 6.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.4 × 2.66 = 17. Upper limit 10.4, lower limit −23.6.

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.