Westmont 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 66 points under the grade 3 bar. 2370 vs. 2436.
4th The average 4th grader scores just under the grade 3 bar. 2434 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores 43 points under the grade 4 bar. 2442 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores 17 points under the grade 5 bar. 2511 vs. 2528. The 6th-grade bar is 2552.

Students fluent in English

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

Grade bars 3rd 45 students 59 points under the grade 3 bar. 5th 38 students 32 points under 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 12 students 94 points under the grade 3 bar. 5th 14 students 25 points under the grade 3 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	36,832	2397.5	− 2436	−38.5	× 56 / 222	−9.7
4	36,834	2454.3	− 2485	−30.7	× 55 / 222	−7.6
5	36,836	2469.1	− 2528	−58.9	× 56 / 222	−14.9
6	36,838	2510.8	− 2552	−41.2	× 55 / 222	−10.2
Sum, rounded to a whole point						−42

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	34,316	2420.8	− 2436	−15.2	× 52 / 214	−3.7
4	34,319	2440.1	− 2485	−44.9	× 51 / 214	−10.7
5	34,320	2488.5	− 2528	−39.5	× 53 / 214	−9.8
6	34,323	2512.3	− 2552	−39.7	× 58 / 214	−10.8
Sum, rounded to a whole point						−35

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	34,929	2410.3	− 2436	−25.7	× 51 / 209	−6.3
4	34,931	2446.8	− 2485	−38.2	× 54 / 209	−9.9
5	34,933	2483.6	− 2528	−44.4	× 52 / 209	−11
6	34,935	2528.9	− 2552	−23.1	× 52 / 209	−5.7
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	34,938	2425.3	− 2436	−10.7	× 50 / 213	−2.5
4	34,940	2461.5	− 2485	−23.5	× 51 / 213	−5.6
5	34,942	2456.1	− 2528	−71.9	× 53 / 213	−17.9
6	34,944	2520.9	− 2552	−31.1	× 59 / 213	−8.6
Sum, rounded to a whole point						−35

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,114	2410.2	− 2436	−25.8	× 52 / 198	−6.8
4	35,115	2461.9	− 2485	−23.1	× 48 / 198	−5.6
5	35,116	2494.9	− 2528	−33.1	× 42 / 198	−7
6	35,117	2499.1	− 2552	−52.9	× 56 / 198	−15
Sum, rounded to a whole point						−34

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,011	2377.7	− 2436	−58.3	× 58 / 184	−18.4
4	35,012	2440.6	− 2485	−44.4	× 45 / 184	−10.9
5	35,013	2425.4	− 2528	−102.6	× 34 / 184	−19
6	35,014	2450.7	− 2552	−101.3	× 47 / 184	−25.9
Sum, rounded to a whole point						−74

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	35,050	2393.8	− 2436	−42.2	× 35 / 168	−8.8
4	35,051	2424.0	− 2485	−61	× 54 / 168	−19.6
5	35,052	2446.8	− 2528	−81.2	× 45 / 168	−21.8
6	35,053	2483.3	− 2552	−68.7	× 34 / 168	−13.9
Sum, rounded to a whole point						−64

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	34,910	2386.8	− 2436	−49.2	× 59 / 185	−15.7
4	34,911	2430.3	− 2485	−54.7	× 31 / 185	−9.2
5	34,912	2441.7	− 2528	−86.3	× 46 / 185	−21.5
6	34,913	2471.3	− 2552	−80.7	× 49 / 185	−21.4
Sum, rounded to a whole point						−68

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	34,757	2409.4	− 2436	−26.6	× 51 / 177	−7.7
4	34,758	2417.4	− 2485	−67.6	× 53 / 177	−20.2
5	34,759	2476.3	− 2528	−51.7	× 29 / 177	−8.5
6	34,760	2494.6	− 2552	−57.4	× 44 / 177	−14.3
Sum, rounded to a whole point						−51

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	34,761	2369.6	− 2436	−66.4	× 57 / 190	−19.9
4	34,762	2433.9	− 2485	−51.1	× 52 / 190	−14
5	34,763	2441.7	− 2528	−86.3	× 52 / 190	−23.6
6	34,764	2511.0	− 2552	−41	× 29 / 190	−6.3
Sum, rounded to a whole point						−64

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −42, −35, −33, −35, −34, −74, −64, −68, −51, −64 → −50
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: 2 · 2017→2018: 2 · 2018→2019: 1 · 2019→2022: 40 · 2022→2023: 10 · 2023→2024: 4 · 2024→2025: 17 · 2025→2026: 13 → average 10.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.7 × 2.66 = 28.5. Upper limit −21.5, lower limit −78.5.

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.