Salmon Creek School - A 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. 2503 vs. 2436.
4th The average 4th grader scores 11 points under the grade 4 bar. 2474 vs. 2485.
5th The average 5th grader scores just under the grade 4 bar. 2478 vs. 2485. The 5th-grade bar is 2528.
7th The average 7th grader scores just under the grade 6 bar. 2544 vs. 2552. The 7th-grade bar is 2567.
8th The average 8th grader scores 23 points under the grade 6 bar. 2529 vs. 2552. The 8th-grade bar is 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	94,316	2385.6	− 2436	−50.4	× 16 / 122	−6.6
4	94,319	2456.6	− 2485	−28.4	× 24 / 122	−5.6
5	94,320	2489.5	− 2528	−38.5	× 21 / 122	−6.6
6	94,323	2598.8	− 2552	46.8	× 17 / 122	6.5
7	94,324	2528.9	− 2567	−38.1	× 27 / 122	−8.4
8	94,327	2558.4	− 2586	−27.6	× 17 / 122	−3.8
Sum, rounded to a whole point						−25

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,563	2465.6	− 2436	29.6	× 23 / 139	4.9
4	87,566	2469.4	− 2485	−15.6	× 20 / 139	−2.2
5	87,567	2484.7	− 2528	−43.3	× 26 / 139	−8.1
6	87,569	2540.6	− 2552	−11.4	× 24 / 139	−2
7	87,571	2626.4	− 2567	59.4	× 20 / 139	8.5
8	87,574	2548.1	− 2586	−37.9	× 26 / 139	−7.1
Sum, rounded to a whole point						−6

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,065	2476.8	− 2436	40.8	× 26 / 154	6.9
4	90,067	2509.9	− 2485	24.9	× 25 / 154	4
5	90,069	2464.3	− 2528	−63.7	× 22 / 154	−9.1
6	90,071	2491.4	− 2552	−60.6	× 30 / 154	−11.8
7	90,073	2560.7	− 2567	−6.3	× 27 / 154	−1.1
8	90,074	2615.5	− 2586	29.5	× 24 / 154	4.6
Sum, rounded to a whole point						−6

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,287	2463.1	− 2436	27.1	× 22 / 151	3.9
4	90,290	2489.6	− 2485	4.6	× 27 / 151	0.8
5	90,292	2536.6	− 2528	8.6	× 25 / 151	1.4
6	90,293	2513.1	− 2552	−38.9	× 23 / 151	−5.9
7	90,296	2524.1	− 2567	−42.9	× 29 / 151	−8.2
8	90,298	2523.7	− 2586	−62.3	× 25 / 151	−10.3
Sum, rounded to a whole point						−18

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,906	2484.1	− 2436	48.1	× 32 / 151	10.2
4	90,907	2494.1	− 2485	9.1	× 25 / 151	1.5
5	90,908	2522.6	− 2528	−5.4	× 22 / 151	−0.8
6	90,909	2556.7	− 2552	4.7	× 23 / 151	0.7
7	90,910	2544.3	− 2567	−22.7	× 21 / 151	−3.2
8	90,911	2515.3	− 2586	−70.7	× 28 / 151	−13.1
Sum, rounded to a whole point						−5

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	89,005	2502.4	− 2485	17.4	× 21 / 91	4
5	89,006	2522.2	− 2528	−5.8	× 20 / 91	−1.3
6	89,007	2476.2	− 2552	−75.8	× 17 / 91	−14.2
7	89,008	2561.9	− 2567	−5.1	× 19 / 91	−1.1
8	89,009	2526.5	− 2586	−59.5	× 14 / 91	−9.2
Sum, rounded to a whole point						−22

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,140	2464.4	− 2436	28.4	× 27 / 111	6.9
4	91,141	2456.3	− 2485	−28.7	× 14 / 111	−3.6
5	91,142	2560.8	− 2528	32.8	× 22 / 111	6.5
6	91,143	2526.5	− 2552	−25.5	× 20 / 111	−4.6
7	91,144	2500.6	− 2567	−66.4	× 11 / 111	−6.6
8	91,145	2604.4	− 2586	18.4	× 17 / 111	2.8
Sum, rounded to a whole point						1

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,034	2409.0	− 2436	−27	× 21 / 105	−5.4
4	91,035	2461.3	− 2485	−23.7	× 28 / 105	−6.3
5	91,036	2504.4	− 2528	−23.6	× 17 / 105	−3.8
6	91,037	2558.1	− 2552	6.1	× 22 / 105	1.3
7	91,038	2573.2	− 2567	6.2	× 17 / 105	1
Sum, rounded to a whole point						−13

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,987	2400.3	− 2436	−35.7	× 22 / 142	−5.5
4	90,988	2450.0	− 2485	−35	× 23 / 142	−5.7
5	90,989	2497.7	− 2528	−30.3	× 32 / 142	−6.8
6	90,990	2470.8	− 2552	−81.2	× 25 / 142	−14.3
7	90,991	2588.4	− 2567	21.4	× 21 / 142	3.2
8	90,992	2528.7	− 2586	−57.3	× 19 / 142	−7.7
Sum, rounded to a whole point						−37

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,683	2433.9	− 2436	−2.1	× 18 / 121	−0.3
4	90,684	2481.1	− 2485	−3.9	× 22 / 121	−0.7
5	90,685	2452.6	− 2528	−75.4	× 11 / 121	−6.9
6	90,686	2518.6	− 2552	−33.4	× 28 / 121	−7.7
7	90,687	2519.4	− 2567	−47.6	× 22 / 121	−8.7
8	90,688	2599.8	− 2586	13.8	× 20 / 121	2.3
Sum, rounded to a whole point						−22

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,342	2502.8	− 2436	66.8	× 18 / 107	11.2
4	90,343	2474.0	− 2485	−11	× 20 / 107	−2.1
5	90,344	2478.2	− 2528	−49.8	× 25 / 107	−11.6
7	90,346	2543.8	− 2567	−23.2	× 25 / 107	−5.4
8	90,347	2528.7	− 2586	−57.3	× 19 / 107	−10.2
Sum, rounded to a whole point						−18

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −25, −6, −6, −18, −5, −22, 1, −13, −37, −22, −18 → −15.5
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 19 · 2016→2017: 0 · 2017→2018: 12 · 2018→2019: 13 · 2019→2021: 17 · 2021→2022: 23 · 2022→2023: 14 · 2023→2024: 24 · 2024→2025: 15 · 2025→2026: 4 → average 14.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 14.1 × 2.66 = 37.5. Upper limit 22, lower limit −53.

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.