Strathmore 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	101,119	2371.2	− 2436	−64.8	× 91 / 557	−10.6
4	101,122	2415.2	− 2485	−69.8	× 100 / 557	−12.5
5	101,123	2414.4	− 2528	−113.6	× 95 / 557	−19.4
6	101,126	2439.5	− 2552	−112.5	× 108 / 557	−21.8
7	101,127	2443.7	− 2567	−123.3	× 90 / 557	−19.9
8	101,130	2487.1	− 2586	−98.9	× 73 / 557	−13
Sum, rounded to a whole point						−97

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	93,825	2399.1	− 2436	−36.9	× 83 / 554	−5.5
4	93,827	2419.9	− 2485	−65.1	× 83 / 554	−9.8
5	93,828	2438.5	− 2528	−89.5	× 102 / 554	−16.5
6	93,831	2448.1	− 2552	−103.9	× 97 / 554	−18.2
7	93,833	2463.3	− 2567	−103.7	× 102 / 554	−19.1
8	93,835	2486.7	− 2586	−99.3	× 87 / 554	−15.6
Sum, rounded to a whole point						−85

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	96,590	2391.6	− 2436	−44.4	× 92 / 546	−7.5
4	96,592	2443.3	− 2485	−41.7	× 79 / 546	−6
5	96,595	2453.7	− 2528	−74.3	× 83 / 546	−11.3
6	96,596	2446.7	− 2552	−105.3	× 93 / 546	−17.9
7	96,598	2489.6	− 2567	−77.4	× 96 / 546	−13.6
8	96,600	2474.1	− 2586	−111.9	× 103 / 546	−21.1
Sum, rounded to a whole point						−77

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	96,783	2391.1	− 2436	−44.9	× 83 / 531	−7
4	96,786	2431.9	− 2485	−53.1	× 90 / 531	−9
5	96,787	2460.6	− 2528	−67.4	× 70 / 531	−8.9
6	96,790	2455.7	− 2552	−96.3	× 87 / 531	−15.8
7	96,791	2486.9	− 2567	−80.1	× 98 / 531	−14.8
8	96,794	2491.8	− 2586	−94.2	× 103 / 531	−18.3
Sum, rounded to a whole point						−74

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	97,452	2397.4	− 2436	−38.6	× 82 / 516	−6.1
4	97,453	2424.5	− 2485	−60.5	× 83 / 516	−9.7
5	97,454	2483.9	− 2528	−44.1	× 86 / 516	−7.4
6	97,455	2479.6	− 2552	−72.4	× 75 / 516	−10.5
7	97,456	2487.5	− 2567	−79.5	× 94 / 516	−14.5
8	97,457	2492.8	− 2586	−93.2	× 96 / 516	−17.3
Sum, rounded to a whole point						−66

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,325	2350.0	− 2436	−86	× 70 / 462	−13
4	95,326	2401.6	− 2485	−83.4	× 64 / 462	−11.6
5	95,327	2413.0	− 2528	−115	× 78 / 462	−19.4
6	95,328	2430.6	− 2552	−121.4	× 81 / 462	−21.3
7	95,329	2468.8	− 2567	−98.2	× 93 / 462	−19.8
8	95,330	2462.3	− 2586	−123.7	× 76 / 462	−20.3
Sum, rounded to a whole point						−105

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	97,628	2362.9	− 2436	−73.1	× 75 / 470	−11.7
4	97,629	2403.4	− 2485	−81.6	× 71 / 470	−12.3
5	97,630	2437.5	− 2528	−90.5	× 75 / 470	−14.4
6	97,631	2427.9	− 2552	−124.1	× 80 / 470	−21.1
7	97,632	2466.2	− 2567	−100.8	× 80 / 470	−17.2
8	97,633	2473.5	− 2586	−112.5	× 89 / 470	−21.3
Sum, rounded to a whole point						−98

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	97,475	2383.1	− 2436	−52.9	× 70 / 459	−8.1
4	97,476	2396.8	− 2485	−88.2	× 73 / 459	−14
5	97,477	2455.8	− 2528	−72.2	× 72 / 459	−11.3
6	97,478	2469.6	− 2552	−82.4	× 78 / 459	−14
7	97,479	2451.5	− 2567	−115.5	× 85 / 459	−21.4
8	97,480	2451.6	− 2586	−134.4	× 81 / 459	−23.7
Sum, rounded to a whole point						−93

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	97,368	2370.7	− 2436	−65.3	× 78 / 465	−11
4	97,369	2410.6	− 2485	−74.4	× 70 / 465	−11.2
5	97,370	2437.2	− 2528	−90.8	× 76 / 465	−14.8
6	97,371	2461.6	− 2552	−90.4	× 77 / 465	−15
7	97,372	2473.3	− 2567	−93.7	× 79 / 465	−15.9
8	97,373	2468.5	− 2586	−117.5	× 85 / 465	−21.5
Sum, rounded to a whole point						−89

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	97,087	2402.5	− 2436	−33.5	× 70 / 450	−5.2
4	97,088	2411.5	− 2485	−73.5	× 81 / 450	−13.2
5	97,089	2452.2	− 2528	−75.8	× 67 / 450	−11.3
6	97,090	2439.4	− 2552	−112.6	× 77 / 450	−19.3
7	97,091	2446.4	− 2567	−120.6	× 72 / 450	−19.3
8	97,092	2503.2	− 2586	−82.8	× 83 / 450	−15.3
Sum, rounded to a whole point						−84

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −97, −85, −77, −74, −66, −105, −98, −93, −89, −84 → −86.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 12 · 2016→2017: 8 · 2017→2018: 3 · 2018→2019: 8 · 2019→2021: 39 · 2021→2022: 7 · 2022→2023: 5 · 2023→2024: 4 · 2024→2025: 5 → average 10.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.1 × 2.66 = 26.9. Upper limit −59.9, lower limit −113.7.

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 Strathmore Union Elementary

Strathmore Elementary