El Segundo Unified: 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	23,598	2474.1	− 2436	38.1	× 231 / 1798	4.9
4	23,600	2506.0	− 2485	21	× 209 / 1798	2.4
5	23,602	2523.4	− 2528	−4.6	× 231 / 1798	−0.6
6	23,604	2552.6	− 2552	0.6	× 266 / 1798	0.1
7	23,606	2569.1	− 2567	2.1	× 257 / 1798	0.3
8	23,608	2595.0	− 2586	9	× 268 / 1798	1.3
11	23,610	2610.5	− 2628	−17.5	× 336 / 1798	−3.3
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	22,109	2485.1	− 2436	49.1	× 210 / 1781	5.8
4	22,112	2515.2	− 2485	30.2	× 232 / 1781	3.9
5	22,113	2547.5	− 2528	19.5	× 213 / 1781	2.3
6	22,116	2566.4	− 2552	14.4	× 283 / 1781	2.3
7	22,118	2586.0	− 2567	19	× 280 / 1781	3
8	22,120	2594.8	− 2586	8.8	× 259 / 1781	1.3
11	22,121	2622.5	− 2628	−5.5	× 304 / 1781	−0.9
Sum, rounded to a whole point						18

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,522	2478.9	− 2436	42.9	× 234 / 1785	5.6
4	22,525	2521.7	− 2485	36.7	× 224 / 1785	4.6
5	22,527	2552.3	− 2528	24.3	× 246 / 1785	3.3
6	22,528	2573.6	− 2552	21.6	× 249 / 1785	3
7	22,531	2585.0	− 2567	18	× 273 / 1785	2.8
8	22,533	2602.9	− 2586	16.9	× 282 / 1785	2.7
11	22,534	2644.4	− 2628	16.4	× 277 / 1785	2.5
Sum, rounded to a whole point						25

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,511	2470.0	− 2436	34	× 194 / 1796	3.7
4	22,513	2530.2	− 2485	45.2	× 250 / 1796	6.3
5	22,515	2567.1	− 2528	39.1	× 235 / 1796	5.1
6	22,517	2546.9	− 2552	−5.1	× 272 / 1796	−0.8
7	22,519	2587.9	− 2567	20.9	× 260 / 1796	3
8	22,521	2594.2	− 2586	8.2	× 270 / 1796	1.2
11	22,523	2660.8	− 2628	32.8	× 315 / 1796	5.8
Sum, rounded to a whole point						24

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,699	2483.6	− 2436	47.6	× 209 / 1740	5.7
4	22,700	2531.9	− 2485	46.9	× 187 / 1740	5
5	22,701	2573.1	− 2528	45.1	× 249 / 1740	6.5
6	22,702	2590.7	− 2552	38.7	× 267 / 1740	5.9
7	22,703	2595.9	− 2567	28.9	× 271 / 1740	4.5
8	22,704	2597.0	− 2586	11	× 259 / 1740	1.6
11	22,705	2680.7	− 2628	52.7	× 298 / 1740	9
Sum, rounded to a whole point						38

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,144	2475.0	− 2436	39	× 186 / 1532	4.7
4	22,145	2523.6	− 2485	38.6	× 202 / 1532	5.1
5	22,146	2545.2	− 2528	17.2	× 215 / 1532	2.4
6	22,147	2560.0	− 2552	8	× 234 / 1532	1.2
7	22,148	2594.3	− 2567	27.3	× 256 / 1532	4.6
8	22,149	2608.2	− 2586	22.2	× 260 / 1532	3.8
11	22,150	2656.5	− 2628	28.5	× 179 / 1532	3.3
Sum, rounded to a whole point						25

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,664	2493.4	− 2436	57.4	× 186 / 1640	6.5
4	22,665	2522.5	− 2485	37.5	× 186 / 1640	4.3
5	22,666	2573.8	− 2528	45.8	× 212 / 1640	5.9
6	22,667	2576.0	− 2552	24	× 247 / 1640	3.6
7	22,668	2602.9	− 2567	35.9	× 244 / 1640	5.3
8	22,669	2614.2	− 2586	28.2	× 257 / 1640	4.4
11	22,670	2640.0	− 2628	12	× 308 / 1640	2.3
Sum, rounded to a whole point						32

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,631	2484.4	− 2436	48.4	× 227 / 1728	6.4
4	22,632	2538.9	− 2485	53.9	× 197 / 1728	6.1
5	22,633	2585.8	− 2528	57.8	× 193 / 1728	6.5
6	22,634	2586.5	− 2552	34.5	× 275 / 1728	5.5
7	22,635	2607.0	− 2567	40	× 263 / 1728	6.1
8	22,636	2632.0	− 2586	46	× 255 / 1728	6.8
11	22,637	2660.7	− 2628	32.7	× 318 / 1728	6
Sum, rounded to a whole point						43

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,485	2491.4	− 2436	55.4	× 221 / 1798	6.8
4	22,486	2536.9	− 2485	51.9	× 236 / 1798	6.8
5	22,487	2588.1	− 2528	60.1	× 202 / 1798	6.8
6	22,488	2583.6	− 2552	31.6	× 254 / 1798	4.5
7	22,489	2629.6	− 2567	62.6	× 279 / 1798	9.7
8	22,490	2628.6	− 2586	42.6	× 264 / 1798	6.3
11	22,491	2655.4	− 2628	27.4	× 342 / 1798	5.2
Sum, rounded to a whole point						46

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,396	2479.8	− 2436	43.8	× 189 / 1759	4.7
4	22,397	2534.7	− 2485	49.7	× 227 / 1759	6.4
5	22,398	2582.3	− 2528	54.3	× 245 / 1759	7.6
6	22,399	2582.5	− 2552	30.5	× 252 / 1759	4.4
7	22,400	2625.6	− 2567	58.6	× 257 / 1759	8.6
8	22,401	2668.6	− 2586	82.6	× 285 / 1759	13.4
11	22,402	2655.5	− 2628	27.5	× 304 / 1759	4.8
Sum, rounded to a whole point						50

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,452	2501.3	− 2436	65.3	× 228 / 1704	8.7
4	22,453	2534.5	− 2485	49.5	× 202 / 1704	5.9
5	22,454	2597.4	− 2528	69.4	× 227 / 1704	9.2
6	22,455	2578.2	− 2552	26.2	× 262 / 1704	4
7	22,456	2630.1	− 2567	63.1	× 254 / 1704	9.4
8	22,457	2659.3	− 2586	73.3	× 252 / 1704	10.8
11	22,458	2672.6	− 2628	44.6	× 279 / 1704	7.3
Sum, rounded to a whole point						55

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 5, 18, 25, 24, 38, 25, 32, 43, 46, 50, 55 → 32.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 13 · 2016→2017: 7 · 2017→2018: 1 · 2018→2019: 14 · 2019→2021: 13 · 2021→2022: 7 · 2022→2023: 11 · 2023→2024: 3 · 2024→2025: 4 · 2025→2026: 5 → average 7.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.8 × 2.66 = 20.7. Upper limit 53.5, lower limit 12.1.

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 — 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.

El Segundo Unified