Bowman Charter: 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.

3rd The average 3rd grader meets the grade 3 bar. 2453 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2496 vs. 2485.
5th The average 5th grader scores 25 points under the grade 5 bar. 2503 vs. 2528.
6th The average 6th grader meets the grade 6 bar. 2562 vs. 2552.
7th The average 7th grader scores just under the grade 6 bar. 2551 vs. 2552. The 7th-grade bar is 2567.
8th The average 8th grader scores just under the grade 8 bar. 2583 vs. 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
3	53,578	2448.9	− 2436	12.9	× 57 / 341	2.2
4	53,581	2492.1	− 2485	7.1	× 62 / 341	1.3
5	53,582	2534.2	− 2528	6.2	× 61 / 341	1.1
6	53,585	2534.1	− 2552	−17.9	× 54 / 341	−2.8
7	53,586	2558.9	− 2567	−8.1	× 54 / 341	−1.3
8	53,589	2551.5	− 2586	−34.5	× 53 / 341	−5.4
Sum, rounded to a whole point						−5

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	49,779	2445.3	− 2436	9.3	× 62 / 361	1.6
4	49,782	2502.6	− 2485	17.6	× 63 / 361	3.1
5	49,784	2540.7	− 2528	12.7	× 63 / 361	2.2
6	49,786	2573.8	− 2552	21.8	× 63 / 361	3.8
7	49,787	2576.7	− 2567	9.7	× 52 / 361	1.4
8	49,790	2578.2	− 2586	−7.8	× 58 / 361	−1.3
Sum, rounded to a whole point						11

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	51,171	2468.3	− 2436	32.3	× 64 / 362	5.7
4	51,173	2505.3	− 2485	20.3	× 62 / 362	3.5
5	51,176	2537.3	− 2528	9.3	× 65 / 362	1.7
6	51,177	2583.4	− 2552	31.4	× 60 / 362	5.2
7	51,180	2582.4	− 2567	15.4	× 61 / 362	2.6
8	51,181	2590.3	− 2586	4.3	× 50 / 362	0.6
Sum, rounded to a whole point						19

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	51,200	2475.6	− 2436	39.6	× 67 / 376	7.1
4	51,201	2507.6	− 2485	22.6	× 62 / 376	3.7
5	51,204	2539.7	− 2528	11.7	× 60 / 376	1.9
6	51,205	2541.9	− 2552	−10.1	× 64 / 376	−1.7
7	51,208	2581.0	− 2567	14	× 61 / 376	2.3
8	51,209	2610.9	− 2586	24.9	× 62 / 376	4.1
Sum, rounded to a whole point						17

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	51,409	2471.5	− 2436	35.5	× 68 / 368	6.6
4	51,410	2516.5	− 2485	31.5	× 67 / 368	5.7
5	51,411	2524.0	− 2528	−4	× 58 / 368	−0.6
6	51,412	2534.1	− 2552	−17.9	× 60 / 368	−2.9
7	51,413	2588.2	− 2567	21.2	× 61 / 368	3.5
8	51,414	2614.0	− 2586	28	× 54 / 368	4.1
Sum, rounded to a whole point						16

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,154	2429.8	− 2436	−6.2	× 65 / 356	−1.1
4	50,155	2469.1	− 2485	−15.9	× 57 / 356	−2.5
5	50,156	2539.9	− 2528	11.9	× 59 / 356	2
6	50,157	2553.5	− 2552	1.5	× 65 / 356	0.3
7	50,158	2560.8	− 2567	−6.2	× 56 / 356	−1
8	50,159	2555.2	− 2586	−30.8	× 54 / 356	−4.7
Sum, rounded to a whole point						−7

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	51,323	2451.2	− 2436	15.2	× 56 / 352	2.4
4	51,324	2475.4	− 2485	−9.6	× 64 / 352	−1.7
5	51,325	2537.0	− 2528	9	× 54 / 352	1.4
6	51,326	2566.3	− 2552	14.3	× 58 / 352	2.4
7	51,327	2565.8	− 2567	−1.2	× 61 / 352	−0.2
8	51,328	2592.5	− 2586	6.5	× 59 / 352	1.1
Sum, rounded to a whole point						5

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	51,290	2470.1	− 2436	34.1	× 60 / 373	5.5
4	51,291	2476.5	− 2485	−8.5	× 61 / 373	−1.4
5	51,292	2565.4	− 2528	37.4	× 63 / 373	6.3
6	51,293	2549.3	− 2552	−2.7	× 59 / 373	−0.4
7	51,294	2553.6	− 2567	−13.4	× 64 / 373	−2.3
8	51,295	2589.6	− 2586	3.6	× 66 / 373	0.6
Sum, rounded to a whole point						8

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	51,138	2449.4	− 2436	13.4	× 65 / 377	2.3
4	51,139	2523.0	− 2485	38	× 62 / 377	6.2
5	51,140	2536.0	− 2528	8	× 65 / 377	1.4
6	51,141	2559.6	− 2552	7.6	× 66 / 377	1.3
7	51,142	2533.2	− 2567	−33.8	× 58 / 377	−5.2
8	51,143	2581.5	− 2586	−4.5	× 61 / 377	−0.7
Sum, rounded to a whole point						5

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,904	2448.5	− 2436	12.5	× 66 / 383	2.2
4	50,905	2492.2	− 2485	7.2	× 63 / 383	1.2
5	50,906	2556.2	− 2528	28.2	× 64 / 383	4.7
6	50,907	2516.7	− 2552	−35.3	× 63 / 383	−5.8
7	50,908	2558.0	− 2567	−9	× 69 / 383	−1.6
8	50,909	2569.8	− 2586	−16.2	× 58 / 383	−2.5
Sum, rounded to a whole point						−2

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	50,783	2453.2	− 2436	17.2	× 62 / 386	2.8
4	50,784	2495.6	− 2485	10.6	× 65 / 386	1.8
5	50,785	2503.1	− 2528	−24.9	× 62 / 386	−4
6	50,786	2561.5	− 2552	9.5	× 65 / 386	1.6
7	50,787	2550.8	− 2567	−16.2	× 64 / 386	−2.7
8	50,788	2583.0	− 2586	−3	× 68 / 386	−0.5
Sum, rounded to a whole point						−1

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −5, 11, 19, 17, 16, −7, 5, 8, 5, −2, −1 → 6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 16 · 2016→2017: 8 · 2017→2018: 2 · 2018→2019: 1 · 2019→2021: 23 · 2021→2022: 12 · 2022→2023: 3 · 2023→2024: 3 · 2024→2025: 7 · 2025→2026: 1 → average 7.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.6 × 2.66 = 20.2. Upper limit 26.2, lower limit −14.2.

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.