Forestville Union Elementary: math

The shaded band is this district'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	94,146	2398.6	− 2436	−37.4	× 40 / 225	−6.6
4	94,149	2493.7	− 2485	8.7	× 28 / 225	1.1
5	94,150	2489.7	− 2528	−38.3	× 38 / 225	−6.5
6	94,153	2497.6	− 2552	−54.4	× 36 / 225	−8.7
7	94,154	2503.9	− 2567	−63.1	× 39 / 225	−10.9
8	94,157	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	87,401	2446.6	− 2436	10.6	× 30 / 218	1.5
4	87,403	2439.5	− 2485	−45.5	× 38 / 218	−7.9
5	87,405	2493.6	− 2528	−34.4	× 28 / 218	−4.4
6	87,408	2508.6	− 2552	−43.4	× 38 / 218	−7.6
7	87,409	2526.8	− 2567	−40.2	× 38 / 218	−7
8	87,412	2516.4	− 2586	−69.6	× 46 / 218	−14.7
Sum, rounded to a whole point						−40

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,891	2419.4	− 2436	−16.6	× 49 / 226	−3.6
4	89,893	2463.6	− 2485	−21.4	× 29 / 226	−2.7
5	89,894	2430.4	− 2528	−97.6	× 43 / 226	−18.6
6	89,896	2521.9	− 2552	−30.1	× 28 / 226	−3.7
7	89,899	2503.8	− 2567	−63.2	× 38 / 226	−10.6
8	89,901	2512.3	− 2586	−73.7	× 39 / 226	−12.7
Sum, rounded to a whole point						−52

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,108	2418.6	− 2436	−17.4	× 34 / 155	−3.8
4	90,109	2457.8	− 2485	−27.2	× 50 / 155	−8.8
5	90,112	2478.4	− 2528	−49.6	× 27 / 155	−8.6
6	90,113	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	90,718	2419.5	− 2436	−16.5	× 33 / 143	−3.8
4	90,719	2471.7	− 2485	−13.3	× 31 / 143	−2.9
5	90,720	2486.7	− 2528	−41.3	× 50 / 143	−14.4
6	90,721	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	90,950	2435.9	− 2436	−0.1	× 24 / 168	0
4	90,951	2451.9	− 2485	−33.1	× 30 / 168	−5.9
5	90,952	2474.0	− 2528	−54	× 27 / 168	−8.7
6	90,953	2440.7	− 2552	−111.3	× 26 / 168	−17.2
7	90,954	2470.0	− 2567	−97	× 25 / 168	−14.4
8	90,955	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	90,844	2428.7	− 2436	−7.3	× 22 / 149	−1.1
4	90,845	2452.1	− 2485	−32.9	× 22 / 149	−4.9
5	90,846	2494.4	− 2528	−33.6	× 31 / 149	−7
6	90,847	2451.9	− 2552	−100.1	× 24 / 149	−16.1
7	90,848	2461.8	− 2567	−105.2	× 27 / 149	−19.1
8	90,849	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	90,793	2397.6	− 2436	−38.4	× 19 / 142	−5.1
4	90,794	2456.6	− 2485	−28.4	× 21 / 142	−4.2
5	90,795	2495.0	− 2528	−33	× 22 / 142	−5.1
6	90,796	2447.9	− 2552	−104.1	× 29 / 142	−21.3
7	90,797	2487.8	− 2567	−79.2	× 24 / 142	−13.4
8	90,798	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	90,483	2414.9	− 2436	−21.1	× 20 / 129	−3.3
4	90,484	2456.7	− 2485	−28.3	× 20 / 129	−4.4
5	90,485	2488.5	− 2528	−39.5	× 21 / 129	−6.4
6	90,486	2467.7	− 2552	−84.3	× 18 / 129	−11.8
7	90,487	2472.3	− 2567	−94.7	× 29 / 129	−21.3
8	90,488	2476.6	− 2586	−109.4	× 21 / 129	−17.8
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. −44, −40, −52, −34, −30, −70, −70, −81, −65 → −54
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 4 · 2016→2017: 12 · 2017→2018: 18 · 2018→2019: 4 · 2019→2022: 40 · 2022→2023: 0 · 2023→2024: 11 · 2024→2025: 16 → average 13.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.1 × 2.66 = 34.8. Upper limit −19.2, lower limit −88.8.

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 — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.

Schools in Forestville Union Elementary

Forestville Academy Charter