Mary Chapa Academy: 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.

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, 228 of the 323 students who took the math test were English learners.

All students

3rd The average 3rd grader scores 61 points under the grade 3 bar. 2375 vs. 2436.
4th The average 4th grader scores 26 points under the grade 3 bar. 2410 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores just under the grade 3 bar. 2429 vs. 2436. The 5th-grade bar is 2528.
6th The average 6th grader scores 36 points under the grade 4 bar. 2450 vs. 2485. 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 25 students 32 points under the grade 3 bar. 4th 23 students 31 points under the grade 4 bar. 5th 19 students 13 points under the grade 4 bar. 6th 28 students 13 points under the grade 5 bar.

English learners

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

Grade bars 3rd 64 students 72 points under the grade 3 bar. 4th 60 students 42 points under the grade 3 bar. 5th 53 students 22 points under the grade 3 bar. 6th 51 students 23 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	45,640	2364.6	− 2436	−71.4	× 123 / 379	−23.2
4	45,641	2382.4	− 2485	−102.6	× 129 / 379	−34.9
5	45,644	2431.4	− 2528	−96.6	× 127 / 379	−32.4
Sum, rounded to a whole point						−90

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,341	2387.4	− 2436	−48.6	× 133 / 398	−16.2
4	42,344	2410.4	− 2485	−74.6	× 135 / 398	−25.3
5	42,345	2441.9	− 2528	−86.1	× 130 / 398	−28.1
Sum, rounded to a whole point						−70

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	43,403	2409.5	− 2436	−26.5	× 140 / 419	−8.9
4	43,405	2421.3	− 2485	−63.7	× 141 / 419	−21.4
5	43,407	2456.5	− 2528	−71.5	× 138 / 419	−23.5
Sum, rounded to a whole point						−54

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	43,426	2396.4	− 2436	−39.6	× 128 / 415	−12.2
4	43,427	2422.1	− 2485	−62.9	× 146 / 415	−22.1
5	43,430	2444.5	− 2528	−83.5	× 141 / 415	−28.4
Sum, rounded to a whole point						−63

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	43,559	2385.2	− 2436	−50.8	× 105 / 440	−12.1
4	43,560	2437.3	− 2485	−47.7	× 116 / 440	−12.6
5	43,561	2450.6	− 2528	−77.4	× 114 / 440	−20.1
6	43,562	2462.6	− 2552	−89.4	× 105 / 440	−21.3
Sum, rounded to a whole point						−66

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	43,271	2373.2	− 2436	−62.8	× 109 / 404	−16.9
4	43,272	2393.4	− 2485	−91.6	× 107 / 404	−24.3
5	43,273	2430.9	− 2528	−97.1	× 95 / 404	−22.8
6	43,274	2444.7	− 2552	−107.3	× 93 / 404	−24.7
Sum, rounded to a whole point						−89

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	43,291	2387.8	− 2436	−48.2	× 85 / 371	−11
4	43,292	2420.5	− 2485	−64.5	× 98 / 371	−17
5	43,293	2422.4	− 2528	−105.6	× 99 / 371	−28.2
6	43,294	2433.1	− 2552	−118.9	× 89 / 371	−28.5
Sum, rounded to a whole point						−85

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	43,115	2388.5	− 2436	−47.5	× 71 / 342	−9.9
4	43,116	2424.5	− 2485	−60.5	× 83 / 342	−14.7
5	43,117	2425.6	− 2528	−102.4	× 94 / 342	−28.1
6	43,118	2422.3	− 2552	−129.7	× 94 / 342	−35.6
Sum, rounded to a whole point						−88

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,870	2390.5	− 2436	−45.5	× 94 / 349	−12.3
4	42,871	2431.2	− 2485	−53.8	× 71 / 349	−10.9
5	42,872	2421.9	− 2528	−106.1	× 86 / 349	−26.1
6	42,873	2481.3	− 2552	−70.7	× 98 / 349	−19.9
Sum, rounded to a whole point						−69

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	42,764	2375.3	− 2436	−60.7	× 89 / 323	−16.7
4	42,765	2410.3	− 2485	−74.7	× 83 / 323	−19.2
5	42,766	2429.3	− 2528	−98.7	× 72 / 323	−22
6	42,767	2449.5	− 2552	−102.5	× 79 / 323	−25.1
Sum, rounded to a whole point						−83

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −90, −70, −54, −63, −66, −89, −85, −88, −69, −83 → −75.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 20 · 2016→2017: 16 · 2017→2018: 9 · 2018→2019: 3 · 2019→2022: 23 · 2022→2023: 4 · 2023→2024: 3 · 2024→2025: 19 · 2025→2026: 14 → 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 −43, lower limit −108.4.

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.