Accelerated: math · Schoolio

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.

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	33,628	2411.4	− 2436	−24.6	× 72 / 495	−3.6
4	33,630	2409.0	− 2485	−76	× 70 / 495	−10.7
5	33,632	2476.8	− 2528	−51.2	× 70 / 495	−7.2
6	33,634	2481.8	− 2552	−70.2	× 77 / 495	−10.9
7	33,636	2495.8	− 2567	−71.2	× 103 / 495	−14.8
8	33,638	2530.6	− 2586	−55.4	× 103 / 495	−11.5
Sum, rounded to a whole point						−59

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	31,815	2393.9	− 2436	−42.1	× 72 / 514	−5.9
4	31,818	2423.7	− 2485	−61.3	× 70 / 514	−8.3
5	31,819	2458.9	− 2528	−69.1	× 69 / 514	−9.3
6	31,821	2453.9	− 2552	−98.1	× 90 / 514	−17.2
7	31,823	2490.6	− 2567	−76.4	× 110 / 514	−16.4
8	31,825	2504.1	− 2586	−81.9	× 103 / 514	−16.4
Sum, rounded to a whole point						−73

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	32,369	2435.1	− 2436	−0.9	× 70 / 530	−0.1
4	32,370	2427.6	− 2485	−57.4	× 70 / 530	−7.6
5	32,373	2460.6	− 2528	−67.4	× 70 / 530	−8.9
6	32,375	2498.6	− 2552	−53.4	× 68 / 530	−6.9
7	32,376	2477.8	− 2567	−89.2	× 134 / 530	−22.6
8	32,378	2475.9	− 2586	−110.1	× 118 / 530	−24.5
Sum, rounded to a whole point						−71

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	32,395	2415.7	− 2436	−20.3	× 72 / 533	−2.7
4	32,397	2458.6	− 2485	−26.4	× 68 / 533	−3.4
5	32,399	2452.5	− 2528	−75.5	× 70 / 533	−9.9
6	32,401	2484.6	− 2552	−67.4	× 67 / 533	−8.5
7	32,403	2507.0	− 2567	−60	× 130 / 533	−14.6
8	32,405	2466.6	− 2586	−119.4	× 126 / 533	−28.2
Sum, rounded to a whole point						−67

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	32,580	2417.6	− 2436	−18.4	× 72 / 537	−2.5
4	32,581	2459.1	− 2485	−25.9	× 69 / 537	−3.3
5	32,582	2490.8	− 2528	−37.2	× 68 / 537	−4.7
6	32,583	2453.9	− 2552	−98.1	× 75 / 537	−13.7
7	32,584	2502.2	− 2567	−64.8	× 121 / 537	−14.6
8	32,585	2497.7	− 2586	−88.3	× 132 / 537	−21.7
Sum, rounded to a whole point						−61

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	32,609	2402.4	− 2436	−33.6	× 70 / 550	−4.3
4	32,610	2416.2	− 2485	−68.8	× 72 / 550	−9
5	32,611	2454.0	− 2528	−74	× 70 / 550	−9.4
6	32,612	2442.7	− 2552	−109.3	× 94 / 550	−18.7
7	32,613	2440.5	− 2567	−126.5	× 128 / 550	−29.4
8	32,614	2460.1	− 2586	−125.9	× 116 / 550	−26.6
Sum, rounded to a whole point						−97

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	32,664	2392.5	− 2436	−43.5	× 69 / 551	−5.4
4	32,665	2476.9	− 2485	−8.1	× 69 / 551	−1
5	32,666	2477.2	− 2528	−50.8	× 71 / 551	−6.5
6	32,667	2434.1	− 2552	−117.9	× 91 / 551	−19.5
7	32,668	2504.1	− 2567	−62.9	× 136 / 551	−15.5
8	32,669	2488.3	− 2586	−97.7	× 115 / 551	−20.4
Sum, rounded to a whole point						−68

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	32,532	2431.7	− 2436	−4.3	× 68 / 557	−0.5
4	32,533	2452.2	− 2485	−32.8	× 69 / 557	−4.1
5	32,534	2473.4	− 2528	−54.6	× 66 / 557	−6.5
6	32,535	2475.9	− 2552	−76.1	× 85 / 557	−11.6
7	32,536	2470.1	− 2567	−96.9	× 137 / 557	−23.8
8	32,537	2508.7	− 2586	−77.3	× 132 / 557	−18.3
Sum, rounded to a whole point						−65

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	32,391	2411.0	− 2436	−25	× 70 / 562	−3.1
4	32,392	2455.5	− 2485	−29.5	× 70 / 562	−3.7
5	32,393	2466.6	− 2528	−61.4	× 70 / 562	−7.6
6	32,394	2469.8	− 2552	−82.2	× 93 / 562	−13.6
7	32,395	2502.9	− 2567	−64.1	× 128 / 562	−14.6
8	32,396	2492.1	− 2586	−93.9	× 131 / 562	−21.9
Sum, rounded to a whole point						−65

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −59, −73, −71, −67, −61, −97, −68, −65, −65 → −69.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 14 · 2016→2017: 2 · 2017→2018: 4 · 2018→2019: 6 · 2019→2022: 36 · 2022→2023: 29 · 2023→2024: 3 · 2024→2025: 0 → average 11.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.8 × 2.66 = 31.4. Upper limit −38.2, lower limit −101.

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.