Stagg Street 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 5.

All students

3rd The average 3rd grader scores just under the grade 3 bar. 2433 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2502 vs. 2485.
5th The average 5th grader scores 24 points under the grade 5 bar. 2504 vs. 2528.

Students fluent in English

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

Grade bars 3rd 54 students Meets the grade 3 bar. 4th 50 students Meets the grade 4 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 68 points under the grade 3 bar. 4th 13 students 19 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	32,162	2414.3	− 2436	−21.7	× 61 / 192	−6.9
4	32,164	2457.8	− 2485	−27.2	× 67 / 192	−9.5
5	32,166	2488.3	− 2528	−39.7	× 64 / 192	−13.2
Sum, rounded to a whole point						−30

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,376	2432.1	− 2436	−3.9	× 65 / 190	−1.3
4	30,378	2484.7	− 2485	−0.3	× 56 / 190	−0.1
5	30,379	2488.2	− 2528	−39.8	× 69 / 190	−14.5
Sum, rounded to a whole point						−16

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,941	2441.1	− 2436	5.1	× 74 / 190	2
4	30,943	2495.6	− 2485	10.6	× 57 / 190	3.2
5	30,945	2527.3	− 2528	−0.7	× 59 / 190	−0.2
Sum, rounded to a whole point						5

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,988	2446.2	− 2436	10.2	× 53 / 180	3
4	30,990	2504.8	− 2485	19.8	× 69 / 180	7.6
5	30,992	2526.8	− 2528	−1.2	× 58 / 180	−0.4
Sum, rounded to a whole point						10

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	31,163	2451.5	− 2436	15.5	× 48 / 177	4.2
4	31,164	2468.8	− 2485	−16.2	× 59 / 177	−5.4
5	31,165	2525.9	− 2528	−2.1	× 70 / 177	−0.8
Sum, rounded to a whole point						−2

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	31,180	2446.4	− 2436	10.4	× 67 / 179	3.9
4	31,181	2447.4	− 2485	−37.6	× 61 / 179	−12.8
5	31,182	2470.8	− 2528	−57.2	× 51 / 179	−16.3
Sum, rounded to a whole point						−25

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	31,237	2451.8	− 2436	15.8	× 56 / 176	5
4	31,238	2484.0	− 2485	−1	× 63 / 176	−0.4
5	31,239	2494.1	− 2528	−33.9	× 57 / 176	−11
Sum, rounded to a whole point						−6

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	31,103	2461.5	− 2436	25.5	× 61 / 184	8.5
4	31,104	2498.5	− 2485	13.5	× 59 / 184	4.3
5	31,105	2503.8	− 2528	−24.2	× 64 / 184	−8.4
Sum, rounded to a whole point						4

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,962	2449.8	− 2436	13.8	× 64 / 185	4.8
4	30,963	2504.2	− 2485	19.2	× 61 / 185	6.3
5	30,964	2495.3	− 2528	−32.7	× 60 / 185	−10.6
Sum, rounded to a whole point						0

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,948	2433.3	− 2436	−2.7	× 69 / 195	−1
4	30,949	2502.0	− 2485	17	× 63 / 195	5.5
5	30,950	2503.8	− 2528	−24.2	× 63 / 195	−7.8
Sum, rounded to a whole point						−3

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −30, −16, 5, 10, −2, −25, −6, 4, 0, −3 → −6.3
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: 21 · 2017→2018: 5 · 2018→2019: 12 · 2019→2022: 23 · 2022→2023: 19 · 2023→2024: 10 · 2024→2025: 4 · 2025→2026: 3 → average 12.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 12.3 × 2.66 = 32.7. Upper limit 26.4, lower limit −39.

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.