Forestville Academy: 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 scores 29 points under the grade 3 bar. 2407 vs. 2436.
4th The average 4th grader scores 33 points under the grade 4 bar. 2452 vs. 2485.
5th The average 5th grader scores 18 points under the grade 4 bar. 2468 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores 36 points under the grade 4 bar. 2449 vs. 2485. The 6th-grade bar is 2552.
7th The average 7th grader scores 22 points under the grade 4 bar. 2463 vs. 2485. The 7th-grade bar is 2567.
8th The average 8th grader scores 36 points under the grade 4 bar. 2449 vs. 2485. 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	94,160	2398.6	− 2436	−37.4	× 40 / 225	−6.6
4	94,163	2493.7	− 2485	8.7	× 28 / 225	1.1
5	94,164	2489.7	− 2528	−38.3	× 38 / 225	−6.5
6	94,167	2497.6	− 2552	−54.4	× 36 / 225	−8.7
7	94,168	2503.9	− 2567	−63.1	× 39 / 225	−10.9
8	94,171	2523.6	− 2586	−62.4	× 44 / 225	−12.2
Sum, rounded to a whole point						−44

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,415	2446.6	− 2436	10.6	× 30 / 217	1.5
4	87,417	2439.5	− 2485	−45.5	× 38 / 217	−8
5	87,419	2493.6	− 2528	−34.4	× 28 / 217	−4.4
6	87,422	2508.6	− 2552	−43.4	× 38 / 217	−7.6
7	87,423	2530.7	− 2567	−36.3	× 37 / 217	−6.2
8	87,425	2516.4	− 2586	−69.6	× 46 / 217	−14.8
Sum, rounded to a whole point						−39

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,905	2422.5	− 2436	−13.5	× 48 / 225	−2.9
4	89,906	2463.6	− 2485	−21.4	× 29 / 225	−2.8
5	89,908	2430.4	− 2528	−97.6	× 43 / 225	−18.7
6	89,910	2521.9	− 2552	−30.1	× 28 / 225	−3.7
7	89,913	2503.8	− 2567	−63.2	× 38 / 225	−10.7
8	89,914	2512.3	− 2586	−73.7	× 39 / 225	−12.8
Sum, rounded to a whole point						−51

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,118	2418.6	− 2436	−17.4	× 34 / 155	−3.8
4	90,119	2457.8	− 2485	−27.2	× 50 / 155	−8.8
5	90,122	2478.4	− 2528	−49.6	× 27 / 155	−8.6
6	90,123	2505.6	− 2552	−46.4	× 44 / 155	−13.2
Sum, rounded to a whole point						−34

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,728	2419.5	− 2436	−16.5	× 33 / 143	−3.8
4	90,729	2471.7	− 2485	−13.3	× 31 / 143	−2.9
5	90,730	2486.7	− 2528	−41.3	× 50 / 143	−14.4
6	90,731	2509.7	− 2552	−42.3	× 29 / 143	−8.6
Sum, rounded to a whole point						−30

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,964	2435.9	− 2436	−0.1	× 24 / 168	0
4	90,965	2451.9	− 2485	−33.1	× 30 / 168	−5.9
5	90,966	2474.0	− 2528	−54	× 27 / 168	−8.7
6	90,967	2440.7	− 2552	−111.3	× 26 / 168	−17.2
7	90,968	2470.0	− 2567	−97	× 25 / 168	−14.4
8	90,969	2475.8	− 2586	−110.2	× 36 / 168	−23.6
Sum, rounded to a whole point						−70

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,858	2428.7	− 2436	−7.3	× 22 / 149	−1.1
4	90,859	2452.1	− 2485	−32.9	× 22 / 149	−4.9
5	90,860	2494.4	− 2528	−33.6	× 31 / 149	−7
6	90,861	2451.9	− 2552	−100.1	× 24 / 149	−16.1
7	90,862	2461.8	− 2567	−105.2	× 27 / 149	−19.1
8	90,863	2442.7	− 2586	−143.3	× 23 / 149	−22.1
Sum, rounded to a whole point						−70

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,807	2397.6	− 2436	−38.4	× 19 / 142	−5.1
4	90,808	2456.6	− 2485	−28.4	× 21 / 142	−4.2
5	90,809	2495.0	− 2528	−33	× 22 / 142	−5.1
6	90,810	2447.9	− 2552	−104.1	× 29 / 142	−21.3
7	90,811	2487.8	− 2567	−79.2	× 24 / 142	−13.4
8	90,812	2417.9	− 2586	−168.1	× 27 / 142	−32
Sum, rounded to a whole point						−81

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,497	2414.9	− 2436	−21.1	× 20 / 129	−3.3
4	90,498	2456.7	− 2485	−28.3	× 20 / 129	−4.4
5	90,499	2488.5	− 2528	−39.5	× 21 / 129	−6.4
6	90,500	2467.7	− 2552	−84.3	× 18 / 129	−11.8
7	90,501	2472.3	− 2567	−94.7	× 29 / 129	−21.3
8	90,502	2476.6	− 2586	−109.4	× 21 / 129	−17.8
Sum, rounded to a whole point						−65

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,156	2406.7	− 2436	−29.3	× 16 / 126	−3.7
4	90,157	2452.1	− 2485	−32.9	× 22 / 126	−5.7
5	90,158	2467.5	− 2528	−60.5	× 20 / 126	−9.6
6	90,159	2448.6	− 2552	−103.4	× 21 / 126	−17.2
7	90,160	2463.4	− 2567	−103.6	× 18 / 126	−14.8
8	90,161	2448.7	− 2586	−137.3	× 29 / 126	−31.6
Sum, rounded to a whole point						−83

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −44, −39, −51, −34, −30, −70, −70, −81, −65, −83 → −56.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 5 · 2016→2017: 12 · 2017→2018: 17 · 2018→2019: 4 · 2019→2022: 40 · 2022→2023: 0 · 2023→2024: 11 · 2024→2025: 16 · 2025→2026: 18 → average 13.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.7 × 2.66 = 36.4. Upper limit −20.3, lower limit −93.1.

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.