Louis Pasteur Fundamental Middle: 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
6	62,596	2492.4	− 2552	−59.6	× 202 / 693	−17.4
7	62,598	2535.5	− 2567	−31.5	× 267 / 693	−12.1
8	62,600	2566.7	− 2586	−19.3	× 224 / 693	−6.2
Sum, rounded to a whole point						−36

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	58,090	2522.3	− 2552	−29.7	× 171 / 689	−7.4
7	58,091	2553.1	− 2567	−13.9	× 256 / 689	−5.2
8	58,093	2532.9	− 2586	−53.1	× 262 / 689	−20.2
Sum, rounded to a whole point						−33

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	59,785	2505.0	− 2552	−47	× 171 / 660	−12.2
7	59,787	2569.1	− 2567	2.1	× 228 / 660	0.7
8	59,788	2551.2	− 2586	−34.8	× 261 / 660	−13.8
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
6	59,902	2521.1	− 2552	−30.9	× 183 / 620	−9.1
7	59,903	2574.3	− 2567	7.3	× 220 / 620	2.6
8	59,906	2568.6	− 2586	−17.4	× 217 / 620	−6.1
Sum, rounded to a whole point						−13

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	60,156	2528.0	− 2552	−24	× 212 / 660	−7.7
7	60,157	2578.7	− 2567	11.7	× 234 / 660	4.1
8	60,158	2557.0	− 2586	−29	× 214 / 660	−9.4
Sum, rounded to a whole point						−13

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	60,224	2502.4	− 2552	−49.6	× 222 / 616	−17.9
7	60,225	2548.2	− 2567	−18.8	× 192 / 616	−5.9
8	60,226	2542.4	− 2586	−43.6	× 202 / 616	−14.3
Sum, rounded to a whole point						−38

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	60,179	2518.6	− 2552	−33.4	× 202 / 624	−10.8
7	60,180	2561.2	− 2567	−5.8	× 236 / 624	−2.2
8	60,181	2566.4	− 2586	−19.6	× 186 / 624	−5.8
Sum, rounded to a whole point						−19

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	60,104	2516.9	− 2552	−35.1	× 210 / 683	−10.8
7	60,105	2556.3	− 2567	−10.7	× 227 / 683	−3.6
8	60,106	2555.6	− 2586	−30.4	× 246 / 683	−10.9
Sum, rounded to a whole point						−25

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	59,865	2494.8	− 2552	−57.2	× 208 / 673	−17.7
7	59,866	2552.4	− 2567	−14.6	× 233 / 673	−5.1
8	59,867	2516.8	− 2586	−69.2	× 232 / 673	−23.9
Sum, rounded to a whole point						−47

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −36, −33, −25, −13, −13, −38, −19, −25, −47 → −27.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 3 · 2016→2017: 8 · 2017→2018: 12 · 2018→2019: 0 · 2019→2022: 25 · 2022→2023: 19 · 2023→2024: 6 · 2024→2025: 22 → average 11.9
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.9 × 2.66 = 31.7. Upper limit 4, lower limit −59.4.

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.