Ross (Betsy) 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.

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, 105 of the 373 students who took the math test were English learners.

All students

3rd The average 3rd grader scores 56 points under the grade 3 bar. 2380 vs. 2436.
4th The average 4th grader scores just under the grade 3 bar. 2428 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores 41 points under the grade 4 bar. 2444 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores just under the grade 4 bar. 2483 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 58 students 36 points under the grade 3 bar. 4th 66 students 41 points under the grade 4 bar. 5th 64 students 14 points under the grade 4 bar. 6th 80 students 22 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 26 students 102 points under the grade 3 bar. 4th 31 students 41 points under the grade 3 bar. 5th 31 students 46 points under the grade 3 bar. 6th 17 students 58 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	47,878	2363.2	− 2436	−72.8	× 131 / 528	−18.1
4	47,881	2416.8	− 2485	−68.2	× 140 / 528	−18.1
5	47,882	2431.6	− 2528	−96.4	× 138 / 528	−25.2
6	47,885	2454.3	− 2552	−97.7	× 119 / 528	−22
Sum, rounded to a whole point						−83

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	44,546	2380.6	− 2436	−55.4	× 117 / 513	−12.6
4	44,548	2417.8	− 2485	−67.2	× 115 / 513	−15.1
5	44,550	2438.0	− 2528	−90	× 140 / 513	−24.6
6	44,551	2479.2	− 2552	−72.8	× 141 / 513	−20
Sum, rounded to a whole point						−72

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,717	2394.6	− 2436	−41.4	× 108 / 475	−9.4
4	45,719	2418.7	− 2485	−66.3	× 125 / 475	−17.4
5	45,720	2434.5	− 2528	−93.5	× 110 / 475	−21.7
6	45,723	2476.5	− 2552	−75.5	× 132 / 475	−21
Sum, rounded to a whole point						−69

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,733	2385.5	− 2436	−50.5	× 127 / 469	−13.7
4	45,735	2430.1	− 2485	−54.9	× 110 / 469	−12.9
5	45,737	2432.8	− 2528	−95.2	× 120 / 469	−24.4
6	45,739	2475.8	− 2552	−76.2	× 112 / 469	−18.2
Sum, rounded to a whole point						−69

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,915	2393.3	− 2436	−42.7	× 121 / 509	−10.2
4	45,916	2439.6	− 2485	−45.4	× 130 / 509	−11.6
5	45,917	2452.2	− 2528	−75.8	× 132 / 509	−19.7
6	45,918	2470.9	− 2552	−81.1	× 126 / 509	−20.1
Sum, rounded to a whole point						−61

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,733	2374.6	− 2436	−61.4	× 116 / 488	−14.6
4	45,734	2413.2	− 2485	−71.8	× 122 / 488	−18
5	45,735	2434.8	− 2528	−93.2	× 136 / 488	−26
6	45,736	2461.9	− 2552	−90.1	× 114 / 488	−21
Sum, rounded to a whole point						−80

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,715	2375.6	− 2436	−60.4	× 100 / 482	−12.5
4	45,716	2423.7	− 2485	−61.3	× 119 / 482	−15.1
5	45,717	2440.8	− 2528	−87.2	× 120 / 482	−21.7
6	45,718	2497.2	− 2552	−54.8	× 143 / 482	−16.3
Sum, rounded to a whole point						−66

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,574	2392.0	− 2436	−44	× 101 / 410	−10.8
4	45,575	2424.1	− 2485	−60.9	× 90 / 410	−13.4
5	45,576	2423.1	− 2528	−104.9	× 115 / 410	−29.4
6	45,577	2488.9	− 2552	−63.1	× 104 / 410	−16
Sum, rounded to a whole point						−70

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,328	2381.1	− 2436	−54.9	× 101 / 399	−13.9
4	45,329	2424.1	− 2485	−60.9	× 99 / 399	−15.1
5	45,330	2440.8	− 2528	−87.2	× 92 / 399	−20.1
6	45,331	2487.6	− 2552	−64.4	× 107 / 399	−17.3
Sum, rounded to a whole point						−66

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	45,222	2379.9	− 2436	−56.1	× 84 / 373	−12.6
4	45,223	2428.4	− 2485	−56.6	× 97 / 373	−14.7
5	45,224	2444.4	− 2528	−83.6	× 95 / 373	−21.3
6	45,225	2483.2	− 2552	−68.8	× 97 / 373	−17.9
Sum, rounded to a whole point						−67

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −83, −72, −69, −69, −61, −80, −66, −70, −66, −67 → −70.3
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 11 · 2016→2017: 3 · 2017→2018: 0 · 2018→2019: 8 · 2019→2022: 19 · 2022→2023: 14 · 2023→2024: 4 · 2024→2025: 4 · 2025→2026: 1 → average 7.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.1 × 2.66 = 18.9. Upper limit −51.4, lower limit −89.2.

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.