Leona Jackson: 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

6th The average 6th grader scores 20 points under the grade 4 bar. 2465 vs. 2485. The 6th-grade bar is 2552.
7th The average 7th grader scores 15 points under the grade 4 bar. 2470 vs. 2485. The 7th-grade bar is 2567.
8th The average 8th grader scores 29 points under the grade 5 bar. 2499 vs. 2528. The 8th-grade bar is 2586.

Students fluent in English

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

Grade bars 6th 109 students Just under the grade 4 bar. 7th 136 students Just under the grade 4 bar. 8th 157 students 23 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 6th 30 students 23 points under the grade 3 bar. 7th 19 students 35 points under the grade 3 bar. 8th 17 students 38 points under the grade 4 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
4	35,970	2440.1	− 2485	−44.9	× 102 / 779	−5.9
5	35,972	2457.4	− 2528	−70.6	× 122 / 779	−11.1
6	35,974	2455.8	− 2552	−96.2	× 172 / 779	−21.2
7	35,976	2471.3	− 2567	−95.7	× 187 / 779	−23
8	35,978	2478.7	− 2586	−107.3	× 196 / 779	−27
Sum, rounded to a whole point						−88

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	33,599	2464.8	− 2485	−20.2	× 125 / 812	−3.1
5	33,600	2469.8	− 2528	−58.2	× 106 / 812	−7.6
6	33,602	2469.9	− 2552	−82.1	× 205 / 812	−20.7
7	33,604	2483.9	− 2567	−83.1	× 186 / 812	−19
8	33,607	2500.2	− 2586	−85.8	× 190 / 812	−20.1
Sum, rounded to a whole point						−71

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	34,195	2464.5	− 2485	−20.5	× 107 / 858	−2.6
5	34,198	2486.1	− 2528	−41.9	× 137 / 858	−6.7
6	34,200	2465.9	− 2552	−86.1	× 217 / 858	−21.8
7	34,202	2490.6	− 2567	−76.4	× 202 / 858	−18
8	34,204	2499.3	− 2586	−86.7	× 195 / 858	−19.7
Sum, rounded to a whole point						−69

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	34,200	2463.2	− 2485	−21.8	× 100 / 836	−2.6
5	34,202	2466.1	− 2528	−61.9	× 108 / 836	−8
6	34,204	2456.9	− 2552	−95.1	× 230 / 836	−26.2
7	34,206	2472.6	− 2567	−94.4	× 204 / 836	−23
8	34,208	2489.8	− 2586	−96.2	× 194 / 836	−22.3
Sum, rounded to a whole point						−82

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	34,367	2473.5	− 2485	−11.5	× 102 / 817	−1.4
5	34,368	2472.6	− 2528	−55.4	× 102 / 817	−6.9
6	34,369	2444.9	− 2552	−107.1	× 186 / 817	−24.4
7	34,370	2480.2	− 2567	−86.8	× 230 / 817	−24.4
8	34,371	2498.2	− 2586	−87.8	× 197 / 817	−21.2
Sum, rounded to a whole point						−78

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	33,580	2410.3	− 2485	−74.7	× 95 / 677	−10.5
5	33,581	2424.9	− 2528	−103.1	× 89 / 677	−13.6
6	33,582	2442.1	− 2552	−109.9	× 162 / 677	−26.3
7	33,583	2460.0	− 2567	−107	× 164 / 677	−25.9
8	33,584	2448.9	− 2586	−137.1	× 167 / 677	−33.8
Sum, rounded to a whole point						−110

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	34,296	2421.1	− 2485	−63.9	× 92 / 650	−9
5	34,297	2437.2	− 2528	−90.8	× 84 / 650	−11.7
6	34,298	2439.2	− 2552	−112.8	× 153 / 650	−26.6
7	34,299	2468.5	− 2567	−98.5	× 156 / 650	−23.6
8	34,300	2476.5	− 2586	−109.5	× 165 / 650	−27.8
Sum, rounded to a whole point						−99

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	34,349	2448.2	− 2485	−36.8	× 83 / 684	−4.5
5	34,350	2460.7	− 2528	−67.3	× 93 / 684	−9.2
6	34,351	2440.3	− 2552	−111.7	× 186 / 684	−30.4
7	34,352	2450.9	− 2567	−116.1	× 156 / 684	−26.5
8	34,353	2479.1	− 2586	−106.9	× 166 / 684	−25.9
Sum, rounded to a whole point						−96

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	34,202	2442.2	− 2528	−85.8	× 88 / 592	−12.8
6	34,203	2448.6	− 2552	−103.4	× 173 / 592	−30.2
7	34,204	2464.2	− 2567	−102.8	× 183 / 592	−31.8
8	34,205	2477.2	− 2586	−108.8	× 148 / 592	−27.2
Sum, rounded to a whole point						−102

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	34,054	2440.2	− 2552	−111.8	× 157 / 505	−34.8
7	34,055	2484.8	− 2567	−82.2	× 169 / 505	−27.5
8	34,056	2493.2	− 2586	−92.8	× 179 / 505	−32.9
Sum, rounded to a whole point						−95

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	34,068	2464.7	− 2552	−87.3	× 139 / 468	−25.9
7	34,069	2469.6	− 2567	−97.4	× 155 / 468	−32.3
8	34,070	2499.3	− 2586	−86.7	× 174 / 468	−32.2
Sum, rounded to a whole point						−90

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −88, −71, −69, −82, −78, −110, −99, −96, −102, −95, −90 → −89.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 17 · 2016→2017: 2 · 2017→2018: 13 · 2018→2019: 4 · 2019→2021: 32 · 2021→2022: 11 · 2022→2023: 3 · 2023→2024: 6 · 2024→2025: 7 · 2025→2026: 5 → average 10
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10 × 2.66 = 26.6. Upper limit −62.5, lower limit −115.7.

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.