Mt. Vernon 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 3 bar

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.

Many students here are still learning English. The math test is written in English, with some translation help, and many of its questions are word problems. In 2026, 75 of the 288 students who took the math test were English learners.

All students

3rd The average 3rd grader scores 72 points under the grade 3 bar. 2364 vs. 2436.
4th The average 4th grader scores 73 points under the grade 3 bar. 2363 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores 37 points under the grade 3 bar. 2399 vs. 2436. The 5th-grade bar is 2528.
6th The average 6th grader scores 27 points under the grade 3 bar. 2409 vs. 2436. 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 59 students 61 points under the grade 3 bar. 4th 54 students 68 points under the grade 3 bar. 5th 46 students 25 points under the grade 3 bar. 6th 54 students 14 points under the grade 3 bar.

English learners

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

Grade bars 3rd 18 students 111 points under the grade 3 bar. 4th 20 students 86 points under the grade 3 bar. 5th 22 students 63 points under the grade 3 bar. 6th 15 students 73 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	68,137	2365.5	− 2436	−70.5	× 99 / 237	−29.4
4	68,139	2389.2	− 2485	−95.8	× 74 / 237	−29.9
5	68,141	2418.1	− 2528	−109.9	× 64 / 237	−29.7
Sum, rounded to a whole point						−89

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,138	2369.2	− 2436	−66.8	× 72 / 307	−15.7
4	63,140	2407.4	− 2485	−77.6	× 96 / 307	−24.3
5	63,142	2428.7	− 2528	−99.3	× 81 / 307	−26.2
6	63,144	2447.8	− 2552	−104.2	× 58 / 307	−19.7
Sum, rounded to a whole point						−86

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	64,925	2386.4	− 2436	−49.6	× 68 / 299	−11.3
4	64,927	2404.9	− 2485	−80.1	× 66 / 299	−17.7
5	64,930	2413.4	− 2528	−114.6	× 97 / 299	−37.2
6	64,931	2462.5	− 2552	−89.5	× 68 / 299	−20.4
Sum, rounded to a whole point						−86

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,015	2386.4	− 2436	−49.6	× 89 / 317	−13.9
4	65,017	2407.6	− 2485	−77.4	× 69 / 317	−16.8
5	65,019	2410.3	− 2528	−117.7	× 67 / 317	−24.9
6	65,021	2428.1	− 2552	−123.9	× 92 / 317	−36
Sum, rounded to a whole point						−92

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,385	2414.6	− 2436	−21.4	× 63 / 280	−4.8
4	65,386	2412.6	− 2485	−72.4	× 87 / 280	−22.5
5	65,387	2433.1	− 2528	−94.9	× 65 / 280	−22
6	65,388	2450.9	− 2552	−101.1	× 65 / 280	−23.5
Sum, rounded to a whole point						−73

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,476	2366.4	− 2436	−69.6	× 69 / 267	−18
4	65,477	2363.3	− 2485	−121.7	× 66 / 267	−30.1
5	65,478	2409.3	− 2528	−118.7	× 68 / 267	−30.2
6	65,479	2409.7	− 2552	−142.3	× 64 / 267	−34.1
Sum, rounded to a whole point						−112

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,481	2365.9	− 2436	−70.1	× 71 / 272	−18.3
4	65,482	2389.0	− 2485	−96	× 69 / 272	−24.4
5	65,483	2394.1	− 2528	−133.9	× 66 / 272	−32.5
6	65,484	2427.7	− 2552	−124.3	× 66 / 272	−30.2
Sum, rounded to a whole point						−105

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,449	2342.6	− 2436	−93.4	× 80 / 290	−25.8
4	65,450	2388.0	− 2485	−97	× 70 / 290	−23.4
5	65,451	2406.9	− 2528	−121.1	× 69 / 290	−28.8
6	65,452	2409.6	− 2552	−142.4	× 71 / 290	−34.9
Sum, rounded to a whole point						−113

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,209	2362.9	− 2436	−73.1	× 79 / 284	−20.3
4	65,210	2371.4	− 2485	−113.6	× 70 / 284	−28
5	65,211	2400.9	− 2528	−127.1	× 70 / 284	−31.3
6	65,212	2431.3	− 2552	−120.7	× 65 / 284	−27.6
Sum, rounded to a whole point						−107

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	65,181	2363.6	− 2436	−72.4	× 77 / 288	−19.4
4	65,182	2363.3	− 2485	−121.7	× 74 / 288	−31.3
5	65,183	2398.8	− 2528	−129.2	× 68 / 288	−30.5
6	65,184	2409.4	− 2552	−142.6	× 69 / 288	−34.2
Sum, rounded to a whole point						−115

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −89, −86, −86, −92, −73, −112, −105, −113, −107, −115 → −97.8
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: 0 · 2017→2018: 6 · 2018→2019: 19 · 2019→2022: 39 · 2022→2023: 7 · 2023→2024: 8 · 2024→2025: 6 · 2025→2026: 8 → 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 −69.3, lower limit −126.3.

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.