Las Flores Home Education Independent Study Academ: 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	21,375	2443.2	− 2436	7.2	× 19 / 66	2.1
4	21,377	2461.2	− 2485	−23.8	× 13 / 66	−4.7
5	21,379	2436.4	− 2528	−91.6	× 20 / 66	−27.8
6	21,381	2449.0	− 2552	−103	× 8 / 66	−12.5
7	21,383	2395.5	− 2567	−171.5	× 2 / 66	−5.2
8	21,385	2424.0	− 2586	−162	× 4 / 66	−9.8
Sum, rounded to a whole point						−58

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,254	2479.9	− 2436	43.9	× 19 / 80	10.4
4	20,257	2508.1	− 2485	23.1	× 16 / 80	4.6
6	20,261	2472.1	− 2552	−79.9	× 18 / 80	−18
7	20,262	2516.2	− 2567	−50.8	× 13 / 80	−8.3
8	20,264	2469.5	− 2586	−116.5	× 14 / 80	−20.4
Sum, rounded to a whole point						−32

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,572	2476.8	− 2436	40.8	× 16 / 77	8.5
4	20,574	2528.3	− 2485	43.3	× 19 / 77	10.7
5	20,576	2562.3	− 2528	34.3	× 15 / 77	6.7
7	20,580	2497.0	− 2567	−70	× 14 / 77	−12.7
8	20,582	2529.9	− 2586	−56.1	× 13 / 77	−9.5
Sum, rounded to a whole point						4

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,562	2494.2	− 2436	58.2	× 14 / 75	10.9
4	20,564	2520.5	− 2485	35.5	× 16 / 75	7.6
5	20,566	2537.3	− 2528	9.3	× 16 / 75	2
6	20,568	2601.6	− 2552	49.6	× 16 / 75	10.6
8	20,572	2555.4	− 2586	−30.6	× 13 / 75	−5.3
Sum, rounded to a whole point						26

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,743	2477.8	− 2436	41.8	× 25 / 84	12.4
4	20,744	2528.3	− 2485	43.3	× 15 / 84	7.7
5	20,745	2513.4	− 2528	−14.6	× 16 / 84	−2.8
6	20,746	2538.5	− 2552	−13.5	× 17 / 84	−2.7
7	20,747	2564.0	− 2567	−3	× 11 / 84	−0.4
Sum, rounded to a whole point						14

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,758	2410.1	− 2436	−25.9	× 34 / 182	−4.8
4	20,759	2415.2	− 2485	−69.8	× 24 / 182	−9.2
5	20,760	2478.2	− 2528	−49.8	× 22 / 182	−6
6	20,761	2461.0	− 2552	−91	× 31 / 182	−15.5
7	20,762	2489.8	− 2567	−77.2	× 29 / 182	−12.3
8	20,763	2468.3	− 2586	−117.7	× 20 / 182	−12.9
11	20,764	2531.3	− 2628	−96.7	× 22 / 182	−11.7
Sum, rounded to a whole point						−72

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,719	2409.2	− 2436	−26.8	× 22 / 157	−3.8
4	20,720	2462.5	− 2485	−22.5	× 35 / 157	−5
5	20,721	2453.2	− 2528	−74.8	× 20 / 157	−9.5
6	20,722	2513.1	− 2552	−38.9	× 20 / 157	−5
7	20,723	2491.8	− 2567	−75.2	× 29 / 157	−13.9
8	20,724	2535.1	− 2586	−50.9	× 16 / 157	−5.2
11	20,725	2542.1	− 2628	−85.9	× 15 / 157	−8.2
Sum, rounded to a whole point						−51

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,595	2425.1	− 2436	−10.9	× 33 / 164	−2.2
4	20,596	2445.4	− 2485	−39.6	× 19 / 164	−4.6
5	20,597	2481.2	− 2528	−46.8	× 33 / 164	−9.4
6	20,598	2523.5	− 2552	−28.5	× 17 / 164	−3
7	20,599	2534.0	− 2567	−33	× 23 / 164	−4.6
8	20,600	2539.7	− 2586	−46.3	× 27 / 164	−7.6
11	20,601	2499.8	− 2628	−128.2	× 12 / 164	−9.4
Sum, rounded to a whole point						−41

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	20,510	2467.6	− 2436	31.6	× 14 / 136	3.3
4	20,511	2496.1	− 2485	11.1	× 29 / 136	2.4
5	20,512	2533.7	− 2528	5.7	× 18 / 136	0.8
6	20,513	2550.8	− 2552	−1.2	× 31 / 136	−0.3
7	20,514	2581.1	− 2567	14.1	× 23 / 136	2.4
8	20,515	2592.9	− 2586	6.9	× 21 / 136	1.1
Sum, rounded to a whole point						10

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −58, −32, 4, 26, 14, −72, −51, −41, 10 → −22.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 26 · 2016→2017: 36 · 2017→2018: 22 · 2018→2019: 12 · 2019→2022: 86 · 2022→2023: 21 · 2023→2024: 10 · 2024→2025: 51 → average 33
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 33 × 2.66 = 87.8. Upper limit 65.6, lower limit −110.

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.