John Muir Middle: 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 25 points under the grade 4 bar. 2460 vs. 2485. The 6th-grade bar is 2552.
7th The average 7th grader scores 10 points under the grade 4 bar. 2476 vs. 2485. The 7th-grade bar is 2567.
8th The average 8th grader scores 14 points under the grade 5 bar. 2514 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 189 students 12 points under the grade 4 bar. 7th 200 students Just under the grade 4 bar. 8th 204 students 22 points under 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 32 students 55 points under the grade 3 bar. 7th 28 students 25 points under the grade 3 bar. 8th 28 students 35 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
6	18,722	2413.4	− 2552	−138.6	× 247 / 683	−50.1
7	18,725	2444.7	− 2567	−122.3	× 212 / 683	−38
8	18,726	2473.3	− 2586	−112.7	× 224 / 683	−37
Sum, rounded to a whole point						−125

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	17,722	2436.2	− 2552	−115.8	× 247 / 699	−40.9
7	17,724	2453.1	− 2567	−113.9	× 242 / 699	−39.4
8	17,725	2479.3	− 2586	−106.7	× 210 / 699	−32.1
Sum, rounded to a whole point						−112

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	18,061	2437.5	− 2552	−114.5	× 253 / 734	−39.5
7	18,063	2457.3	− 2567	−109.7	× 244 / 734	−36.5
8	18,065	2466.6	− 2586	−119.4	× 237 / 734	−38.6
Sum, rounded to a whole point						−114

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	18,070	2449.0	− 2552	−103	× 237 / 713	−34.2
7	18,073	2452.6	− 2567	−114.4	× 237 / 713	−38
8	18,074	2461.2	− 2586	−124.8	× 239 / 713	−41.8
Sum, rounded to a whole point						−114

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	18,217	2484.5	− 2552	−67.5	× 272 / 726	−25.3
7	18,218	2495.5	− 2567	−71.5	× 229 / 726	−22.6
8	18,219	2500.9	− 2586	−85.1	× 225 / 726	−26.4
Sum, rounded to a whole point						−74

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	17,784	2442.9	− 2552	−109.1	× 239 / 740	−35.2
7	17,785	2454.8	− 2567	−112.2	× 261 / 740	−39.6
8	17,786	2477.9	− 2586	−108.1	× 240 / 740	−35.1
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
6	18,262	2453.2	− 2552	−98.8	× 241 / 741	−32.1
7	18,263	2467.0	− 2567	−100	× 245 / 741	−33.1
8	18,264	2450.2	− 2586	−135.8	× 255 / 741	−46.7
Sum, rounded to a whole point						−112

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	18,201	2443.5	− 2552	−108.5	× 256 / 749	−37.1
7	18,202	2474.6	− 2567	−92.4	× 248 / 749	−30.6
8	18,203	2482.4	− 2586	−103.6	× 245 / 749	−33.9
Sum, rounded to a whole point						−102

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	18,158	2430.5	− 2552	−121.5	× 237 / 712	−40.4
7	18,159	2433.1	− 2567	−133.9	× 240 / 712	−45.1
8	18,160	2460.9	− 2586	−125.1	× 235 / 712	−41.3
Sum, rounded to a whole point						−127

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	18,152	2451.5	− 2552	−100.5	× 247 / 733	−33.9
7	18,153	2461.6	− 2567	−105.4	× 241 / 733	−34.7
8	18,154	2459.9	− 2586	−126.1	× 245 / 733	−42.1
Sum, rounded to a whole point						−111

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	18,191	2459.6	− 2552	−92.4	× 221 / 681	−30
7	18,192	2475.5	− 2567	−91.5	× 228 / 681	−30.6
8	18,193	2514.0	− 2586	−72	× 232 / 681	−24.5
Sum, rounded to a whole point						−85

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −125, −112, −114, −114, −74, −110, −112, −102, −127, −111, −85 → −107.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 13 · 2016→2017: 2 · 2017→2018: 0 · 2018→2019: 40 · 2019→2021: 36 · 2021→2022: 2 · 2022→2023: 10 · 2023→2024: 25 · 2024→2025: 16 · 2025→2026: 26 → average 17
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 17 × 2.66 = 45.2. Upper limit −62.6, lower limit −153.

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.