Cielo Vista Charter: 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.

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	57,617	2457.8	− 2436	21.8	× 112 / 390	6.3
4	57,618	2487.4	− 2485	2.4	× 125 / 390	0.8
5	57,621	2508.6	− 2528	−19.4	× 85 / 390	−4.2
6	57,622	2544.7	− 2552	−7.3	× 68 / 390	−1.3
Sum, rounded to a whole point						2

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	53,473	2453.7	− 2436	17.7	× 121 / 500	4.3
4	53,476	2471.6	− 2485	−13.4	× 117 / 500	−3.1
5	53,478	2505.6	− 2528	−22.4	× 123 / 500	−5.5
6	53,480	2537.4	− 2552	−14.6	× 76 / 500	−2.2
7	53,482	2559.4	− 2567	−7.6	× 63 / 500	−1
Sum, rounded to a whole point						−8

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,032	2476.5	− 2436	40.5	× 116 / 619	7.6
4	55,034	2484.1	− 2485	−0.9	× 127 / 619	−0.2
5	55,036	2517.7	− 2528	−10.3	× 125 / 619	−2.1
6	55,038	2546.4	− 2552	−5.6	× 119 / 619	−1.1
7	55,040	2556.8	− 2567	−10.2	× 73 / 619	−1.2
8	55,043	2570.0	− 2586	−16	× 59 / 619	−1.5
Sum, rounded to a whole point						2

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,127	2486.8	− 2436	50.8	× 112 / 666	8.5
4	55,129	2499.2	− 2485	14.2	× 122 / 666	2.6
5	55,131	2528.7	− 2528	0.7	× 127 / 666	0.1
6	55,133	2539.4	− 2552	−12.6	× 122 / 666	−2.3
7	55,135	2542.4	− 2567	−24.6	× 112 / 666	−4.1
8	55,137	2554.3	− 2586	−31.7	× 71 / 666	−3.4
Sum, rounded to a whole point						1

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,375	2486.2	− 2436	50.2	× 78 / 636	6.2
4	55,376	2490.1	− 2485	5.1	× 107 / 636	0.9
5	55,377	2531.9	− 2528	3.9	× 115 / 636	0.7
6	55,378	2531.1	− 2552	−20.9	× 116 / 636	−3.8
7	55,379	2545.2	− 2567	−21.8	× 115 / 636	−3.9
8	55,380	2541.6	− 2586	−44.4	× 105 / 636	−7.3
Sum, rounded to a whole point						−7

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,427	2444.6	− 2436	8.6	× 80 / 565	1.2
4	55,428	2457.6	− 2485	−27.4	× 85 / 565	−4.1
5	55,429	2520.3	− 2528	−7.7	× 86 / 565	−1.2
6	55,430	2473.6	− 2552	−78.4	× 94 / 565	−13
7	55,431	2514.6	− 2567	−52.4	× 111 / 565	−10.3
8	55,432	2485.6	− 2586	−100.4	× 109 / 565	−19.4
Sum, rounded to a whole point						−47

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,376	2446.1	− 2436	10.1	× 87 / 577	1.5
4	55,377	2488.6	− 2485	3.6	× 87 / 577	0.5
5	55,378	2511.7	− 2528	−16.3	× 87 / 577	−2.5
6	55,379	2499.9	− 2552	−52.1	× 116 / 577	−10.5
7	55,380	2522.3	− 2567	−44.7	× 94 / 577	−7.3
8	55,381	2504.1	− 2586	−81.9	× 106 / 577	−15
Sum, rounded to a whole point						−33

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,252	2464.7	− 2436	28.7	× 87 / 586	4.3
4	55,253	2469.4	− 2485	−15.6	× 88 / 586	−2.3
5	55,254	2515.5	− 2528	−12.5	× 86 / 586	−1.8
6	55,255	2492.5	− 2552	−59.5	× 115 / 586	−11.7
7	55,256	2539.3	− 2567	−27.7	× 111 / 586	−5.2
8	55,257	2522.6	− 2586	−63.4	× 99 / 586	−10.7
Sum, rounded to a whole point						−28

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	55,004	2473.3	− 2436	37.3	× 80 / 581	5.1
4	55,005	2499.3	− 2485	14.3	× 87 / 581	2.1
5	55,006	2496.3	− 2528	−31.7	× 84 / 581	−4.6
6	55,007	2519.9	− 2552	−32.1	× 114 / 581	−6.3
7	55,008	2540.1	− 2567	−26.9	× 108 / 581	−5
8	55,009	2527.6	− 2586	−58.4	× 108 / 581	−10.9
Sum, rounded to a whole point						−19

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 2, −8, 2, 1, −7, −47, −33, −28, −19 → −15.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 10 · 2016→2017: 10 · 2017→2018: 1 · 2018→2019: 8 · 2019→2022: 40 · 2022→2023: 14 · 2023→2024: 5 · 2024→2025: 9 → average 12.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 12.1 × 2.66 = 32.2. Upper limit 17, lower limit −47.4.

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.