Stonebrae Elementary: 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.

Measured against the grade bars

The state's math test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 6.

All students

3rd The average 3rd grader scores 10 points under the grade 3 bar. 2426 vs. 2436.
4th The average 4th grader scores just under the grade 4 bar. 2481 vs. 2485.
5th The average 5th grader scores just under the grade 4 bar. 2484 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores just under the grade 6 bar. 2545 vs. 2552.

Students fluent in English

Math with English out of the way. Includes students who have only ever spoken English.

Grade bars 3rd 51 students Meets the grade 3 bar. 4th 68 students Meets the grade 4 bar. 5th 61 students 24 points under the grade 5 bar. 6th 61 students Meets the grade 6 bar.

English learners

Students leave this group as they become fluent, so its average stays low even where they learn well.

Grade bars 3rd 15 students 54 points under the grade 3 bar. 4th 14 students Just under the grade 3 bar. 5th 21 students 10 points under the grade 3 bar. 6th 11 students 22 points under the grade 4 bar.

the group's average that grade's own bar the distance between

2026 results. "Meets standard" is the state's mark for being on track for that grade. The state leaves out any group of ten students or fewer, so a grade may be missing from the charts.

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	1,324	2409.7	− 2436	−26.3	× 118 / 405	−7.7
4	1,326	2448.7	− 2485	−36.3	× 100 / 405	−9
5	1,328	2488.0	− 2528	−40	× 105 / 405	−10.4
6	1,330	2474.3	− 2552	−77.7	× 82 / 405	−15.7
Sum, rounded to a whole point						−43

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	1,135	2406.2	− 2436	−29.8	× 98 / 406	−7.2
4	1,136	2458.2	− 2485	−26.8	× 109 / 406	−7.2
5	1,138	2484.1	− 2528	−43.9	× 106 / 406	−11.5
6	1,141	2509.1	− 2552	−42.9	× 93 / 406	−9.8
Sum, rounded to a whole point						−36

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	1,161	2416.2	− 2436	−19.8	× 89 / 375	−4.7
4	1,163	2445.4	− 2485	−39.6	× 96 / 375	−10.1
5	1,165	2498.6	− 2528	−29.4	× 103 / 375	−8.1
6	1,166	2507.0	− 2552	−45	× 87 / 375	−10.4
Sum, rounded to a whole point						−33

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	1,185	2430.7	− 2436	−5.3	× 85 / 373	−1.2
4	1,186	2436.0	− 2485	−49	× 91 / 373	−12
5	1,189	2481.6	− 2528	−46.4	× 96 / 373	−11.9
6	1,190	2509.5	− 2552	−42.5	× 101 / 373	−11.5
Sum, rounded to a whole point						−37

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	1,213	2402.2	− 2436	−33.8	× 105 / 360	−9.9
4	1,214	2465.6	− 2485	−19.4	× 88 / 360	−4.7
5	1,215	2482.8	− 2528	−45.2	× 92 / 360	−11.6
6	1,216	2502.7	− 2552	−49.3	× 75 / 360	−10.3
Sum, rounded to a whole point						−36

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	1,203	2441.3	− 2436	5.3	× 90 / 340	1.4
4	1,204	2454.6	− 2485	−30.4	× 85 / 340	−7.6
5	1,205	2479.1	− 2528	−48.9	× 86 / 340	−12.4
6	1,206	2521.4	− 2552	−30.6	× 79 / 340	−7.1
Sum, rounded to a whole point						−26

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	1,213	2430.2	− 2436	−5.8	× 90 / 346	−1.5
4	1,214	2483.8	− 2485	−1.2	× 89 / 346	−0.3
5	1,215	2487.2	− 2528	−40.8	× 87 / 346	−10.3
6	1,216	2548.9	− 2552	−3.1	× 80 / 346	−0.7
Sum, rounded to a whole point						−13

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	1,181	2400.2	− 2436	−35.8	× 88 / 319	−9.9
4	1,182	2498.8	− 2485	13.8	× 79 / 319	3.4
5	1,183	2507.5	− 2528	−20.5	× 82 / 319	−5.3
6	1,184	2521.4	− 2552	−30.6	× 70 / 319	−6.7
Sum, rounded to a whole point						−18

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	1,173	2441.2	− 2436	5.2	× 78 / 315	1.3
4	1,174	2458.0	− 2485	−27	× 91 / 315	−7.8
5	1,175	2497.1	− 2528	−30.9	× 74 / 315	−7.3
6	1,176	2546.5	− 2552	−5.5	× 72 / 315	−1.3
Sum, rounded to a whole point						−15

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	1,169	2425.6	− 2436	−10.4	× 66 / 302	−2.3
4	1,170	2481.3	− 2485	−3.7	× 82 / 302	−1
5	1,171	2483.7	− 2528	−44.3	× 82 / 302	−12
6	1,172	2544.7	− 2552	−7.3	× 72 / 302	−1.7
Sum, rounded to a whole point						−17

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −43, −36, −33, −37, −36, −26, −13, −18, −15, −17 → −27.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 3 · 2017→2018: 4 · 2018→2019: 1 · 2019→2022: 10 · 2022→2023: 13 · 2023→2024: 5 · 2024→2025: 3 · 2025→2026: 2 → average 5.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 5.3 × 2.66 = 14.1. Upper limit −13.3, lower limit −41.5.

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.