Burlingame Elementary: english

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	82,593	2478.4	− 2432	46.4	× 362 / 2083	8.1
4	82,594	2523.8	− 2473	50.8	× 385 / 2083	9.4
5	82,597	2557.8	− 2502	55.8	× 336 / 2083	9
6	82,598	2581.1	− 2531	50.1	× 343 / 2083	8.2
7	82,601	2617.0	− 2552	65	× 327 / 2083	10.2
8	82,602	2632.4	− 2567	65.4	× 330 / 2083	10.4
Sum, rounded to a whole point						55

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	76,591	2486.2	− 2432	54.2	× 366 / 2112	9.4
4	76,592	2531.3	− 2473	58.3	× 372 / 2112	10.3
5	76,595	2569.8	− 2502	67.8	× 376 / 2112	12.1
6	76,597	2604.6	− 2531	73.6	× 332 / 2112	11.6
7	76,599	2627.0	− 2552	75	× 346 / 2112	12.3
8	76,601	2654.0	− 2567	87	× 320 / 2112	13.2
Sum, rounded to a whole point						69

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,643	2484.7	− 2432	52.7	× 379 / 2145	9.3
4	78,646	2535.2	− 2473	62.2	× 359 / 2145	10.4
5	78,648	2566.9	− 2502	64.9	× 377 / 2145	11.4
6	78,649	2584.9	− 2531	53.9	× 359 / 2145	9
7	78,651	2625.5	− 2552	73.5	× 332 / 2145	11.4
8	78,653	2634.3	− 2567	67.3	× 339 / 2145	10.6
Sum, rounded to a whole point						62

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	78,790	2493.1	− 2432	61.1	× 378 / 2207	10.5
4	78,793	2539.7	− 2473	66.7	× 383 / 2207	11.6
5	78,794	2563.1	− 2502	61.1	× 374 / 2207	10.4
6	78,797	2604.1	− 2531	73.1	× 372 / 2207	12.3
7	78,798	2602.7	− 2552	50.7	× 355 / 2207	8.2
8	78,801	2643.7	− 2567	76.7	× 345 / 2207	12
Sum, rounded to a whole point						65

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,316	2496.9	− 2432	64.9	× 363 / 2192	10.7
4	79,317	2544.3	− 2473	71.3	× 372 / 2192	12.1
5	79,318	2574.7	− 2502	72.7	× 382 / 2192	12.7
6	79,319	2599.9	− 2531	68.9	× 356 / 2192	11.2
7	79,320	2634.3	− 2552	82.3	× 362 / 2192	13.6
8	79,321	2619.1	− 2567	52.1	× 357 / 2192	8.5
Sum, rounded to a whole point						69

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	77,875	2479.7	− 2432	47.7	× 395 / 2120	8.9
4	77,876	2526.8	− 2473	53.8	× 355 / 2120	9
5	77,877	2555.6	− 2502	53.6	× 353 / 2120	8.9
6	77,878	2592.8	− 2531	61.8	× 337 / 2120	9.8
7	77,879	2612.9	− 2552	60.9	× 349 / 2120	10
8	77,880	2620.0	− 2567	53	× 331 / 2120	8.3
Sum, rounded to a whole point						55

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,564	2490.9	− 2432	58.9	× 385 / 2131	10.6
4	79,565	2532.6	− 2473	59.6	× 384 / 2131	10.7
5	79,566	2568.0	− 2502	66	× 355 / 2131	11
6	79,567	2590.4	− 2531	59.4	× 333 / 2131	9.3
7	79,568	2623.7	− 2552	71.7	× 326 / 2131	11
8	79,569	2623.0	− 2567	56	× 348 / 2131	9.1
Sum, rounded to a whole point						62

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,536	2492.4	− 2432	60.4	× 362 / 2134	10.2
4	79,537	2526.1	− 2473	53.1	× 392 / 2134	9.8
5	79,538	2554.7	− 2502	52.7	× 386 / 2134	9.5
6	79,539	2576.7	− 2531	45.7	× 329 / 2134	7
7	79,540	2612.8	− 2552	60.8	× 330 / 2134	9.4
8	79,541	2642.2	− 2567	75.2	× 335 / 2134	11.8
Sum, rounded to a whole point						58

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,562	2491.2	− 2432	59.2	× 344 / 2177	9.4
4	79,563	2534.3	− 2473	61.3	× 368 / 2177	10.4
5	79,564	2555.3	− 2502	53.3	× 397 / 2177	9.7
6	79,565	2575.0	− 2531	44	× 384 / 2177	7.8
7	79,566	2618.3	− 2552	66.3	× 340 / 2177	10.4
8	79,567	2634.3	− 2567	67.3	× 344 / 2177	10.6
Sum, rounded to a whole point						58

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	79,228	2474.4	− 2432	42.4	× 386 / 2219	7.4
4	79,229	2521.8	− 2473	48.8	× 355 / 2219	7.8
5	79,230	2565.8	− 2502	63.8	× 370 / 2219	10.6
6	79,231	2579.0	− 2531	48	× 376 / 2219	8.1
7	79,232	2606.4	− 2552	54.4	× 390 / 2219	9.6
8	79,233	2636.3	− 2567	69.3	× 342 / 2219	10.7
Sum, rounded to a whole point						54

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 55, 69, 62, 65, 69, 55, 62, 58, 58, 54 → 60.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 14 · 2016→2017: 7 · 2017→2018: 3 · 2018→2019: 4 · 2019→2021: 14 · 2021→2022: 7 · 2022→2023: 4 · 2023→2024: 0 · 2024→2025: 4 → average 6.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.3 × 2.66 = 16.8. Upper limit 77.5, lower limit 43.9.

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.