Jefferson 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.

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, 121 of the 363 students who took the math test were English learners.

All students

3rd The average 3rd grader scores just under the grade 3 bar. 2427 vs. 2436.
4th The average 4th grader scores 37 points under the grade 4 bar. 2448 vs. 2485.
5th The average 5th grader scores 12 points under the grade 5 bar. 2516 vs. 2528.

Students fluent in English

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

Grade bars 3rd 82 students Meets the grade 3 bar. 4th 81 students 21 points under the grade 4 bar. 5th 79 students Meets 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 50 students 37 points under the grade 3 bar. 4th 41 students 19 points under the grade 3 bar. 5th 30 students 30 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	25,500	2394.0	− 2436	−42	× 143 / 387	−15.5
4	25,502	2425.4	− 2485	−59.6	× 121 / 387	−18.6
5	25,504	2442.5	− 2528	−85.5	× 123 / 387	−27.2
Sum, rounded to a whole point						−61

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	23,740	2418.0	− 2436	−18	× 141 / 415	−6.1
4	23,741	2444.4	− 2485	−40.6	× 142 / 415	−13.9
5	23,744	2463.6	− 2528	−64.4	× 132 / 415	−20.5
Sum, rounded to a whole point						−40

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	24,235	2439.0	− 2436	3	× 146 / 416	1.1
4	24,237	2447.5	− 2485	−37.5	× 134 / 416	−12.1
5	24,239	2502.8	− 2528	−25.2	× 136 / 416	−8.2
Sum, rounded to a whole point						−19

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	24,254	2432.6	− 2436	−3.4	× 134 / 415	−1.1
4	24,256	2461.2	− 2485	−23.8	× 147 / 415	−8.4
5	24,258	2471.7	− 2528	−56.3	× 134 / 415	−18.2
Sum, rounded to a whole point						−28

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	24,427	2446.2	− 2436	10.2	× 145 / 426	3.5
4	24,428	2469.1	− 2485	−15.9	× 139 / 426	−5.2
5	24,429	2504.4	− 2528	−23.6	× 142 / 426	−7.9
Sum, rounded to a whole point						−10

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	24,374	2412.0	− 2436	−24	× 135 / 394	−8.2
4	24,375	2444.5	− 2485	−40.5	× 128 / 394	−13.2
5	24,376	2475.8	− 2528	−52.2	× 131 / 394	−17.4
Sum, rounded to a whole point						−39

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	24,339	2442.2	− 2436	6.2	× 120 / 373	2
4	24,340	2446.4	− 2485	−38.6	× 133 / 373	−13.8
5	24,341	2494.7	− 2528	−33.3	× 120 / 373	−10.7
Sum, rounded to a whole point						−22

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	24,189	2453.9	− 2436	17.9	× 107 / 369	5.2
4	24,190	2462.3	− 2485	−22.7	× 122 / 369	−7.5
5	24,191	2482.4	− 2528	−45.6	× 140 / 369	−17.3
Sum, rounded to a whole point						−20

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	24,076	2440.9	− 2436	4.9	× 116 / 357	1.6
4	24,077	2482.4	− 2485	−2.6	× 116 / 357	−0.8
5	24,078	2499.3	− 2528	−28.7	× 125 / 357	−10
Sum, rounded to a whole point						−9

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	24,112	2427.1	− 2436	−8.9	× 132 / 363	−3.2
4	24,113	2448.3	− 2485	−36.7	× 122 / 363	−12.3
5	24,114	2515.7	− 2528	−12.3	× 109 / 363	−3.7
Sum, rounded to a whole point						−19

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −61, −40, −19, −28, −10, −39, −22, −20, −9, −19 → −26.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 21 · 2016→2017: 21 · 2017→2018: 9 · 2018→2019: 18 · 2019→2022: 29 · 2022→2023: 17 · 2023→2024: 2 · 2024→2025: 11 · 2025→2026: 10 → average 15.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 15.3 × 2.66 = 40.7. Upper limit 14, lower limit −67.4.

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.