Ruth Grimes 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 just under the grade 3 bar. 2432 vs. 2436.
4th The average 4th grader scores 33 points under the grade 4 bar. 2452 vs. 2485.
5th The average 5th grader scores 39 points under the grade 5 bar. 2489 vs. 2528.
6th The average 6th grader scores 26 points under the grade 5 bar. 2502 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 51 students Meets the grade 3 bar. 4th 79 students 18 points under the grade 4 bar. 5th 78 students 30 points under the grade 5 bar. 6th 83 students Just 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 20 students 53 points under the grade 3 bar. 4th 15 students 64 points under the grade 3 bar. 5th 12 students Just under the grade 3 bar. 6th 16 students 34 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	65,418	2412.8	− 2436	−23.2	× 89 / 356	−5.8
4	65,421	2439.2	− 2485	−45.8	× 89 / 356	−11.5
5	65,422	2458.0	− 2528	−70	× 85 / 356	−16.7
6	65,425	2504.2	− 2552	−47.8	× 93 / 356	−12.5
Sum, rounded to a whole point						−46

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,652	2442.5	− 2436	6.5	× 87 / 341	1.7
4	60,654	2466.0	− 2485	−19	× 84 / 341	−4.7
5	60,655	2439.0	− 2528	−89	× 90 / 341	−23.5
6	60,658	2466.0	− 2552	−86	× 80 / 341	−20.2
Sum, rounded to a whole point						−47

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,399	2454.3	− 2436	18.3	× 75 / 317	4.3
4	62,402	2449.9	− 2485	−35.1	× 77 / 317	−8.5
5	62,404	2475.7	− 2528	−52.3	× 83 / 317	−13.7
6	62,405	2506.2	− 2552	−45.8	× 82 / 317	−11.8
Sum, rounded to a whole point						−30

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,477	2462.9	− 2436	26.9	× 91 / 318	7.7
4	62,480	2426.4	− 2485	−58.6	× 71 / 318	−13.1
5	62,481	2479.6	− 2528	−48.4	× 79 / 318	−12
6	62,484	2493.9	− 2552	−58.1	× 77 / 318	−14.1
Sum, rounded to a whole point						−31

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,755	2468.2	− 2436	32.2	× 103 / 336	9.9
4	62,756	2464.9	− 2485	−20.1	× 87 / 336	−5.2
5	62,757	2471.0	− 2528	−57	× 65 / 336	−11
6	62,758	2526.0	− 2552	−26	× 81 / 336	−6.3
Sum, rounded to a whole point						−13

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,814	2432.9	− 2436	−3.1	× 84 / 332	−0.8
4	62,815	2448.1	− 2485	−36.9	× 84 / 332	−9.3
5	62,816	2448.0	− 2528	−80	× 79 / 332	−19
6	62,817	2484.7	− 2552	−67.3	× 85 / 332	−17.2
Sum, rounded to a whole point						−46

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,766	2435.8	− 2436	−0.2	× 95 / 340	−0.1
4	62,767	2494.0	− 2485	9	× 81 / 340	2.1
5	62,768	2486.3	− 2528	−41.7	× 79 / 340	−9.7
6	62,769	2459.8	− 2552	−92.2	× 85 / 340	−23.1
Sum, rounded to a whole point						−31

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,721	2428.6	− 2436	−7.4	× 91 / 344	−2
4	62,722	2470.3	− 2485	−14.7	× 98 / 344	−4.2
5	62,723	2485.4	− 2528	−42.6	× 79 / 344	−9.8
6	62,724	2507.5	− 2552	−44.5	× 76 / 344	−9.8
Sum, rounded to a whole point						−26

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,490	2433.3	− 2436	−2.7	× 91 / 371	−0.7
4	62,491	2473.6	− 2485	−11.4	× 89 / 371	−2.7
5	62,492	2476.3	− 2528	−51.7	× 105 / 371	−14.6
6	62,493	2519.9	− 2552	−32.1	× 86 / 371	−7.4
Sum, rounded to a whole point						−25

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,463	2432.0	− 2436	−4	× 71 / 354	−0.8
4	62,464	2452.1	− 2485	−32.9	× 94 / 354	−8.7
5	62,465	2489.1	− 2528	−38.9	× 90 / 354	−9.9
6	62,466	2501.9	− 2552	−50.1	× 99 / 354	−14
Sum, rounded to a whole point						−33

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −46, −47, −30, −31, −13, −46, −31, −26, −25, −33 → −32.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 1 · 2016→2017: 17 · 2017→2018: 1 · 2018→2019: 18 · 2019→2022: 33 · 2022→2023: 15 · 2023→2024: 5 · 2024→2025: 1 · 2025→2026: 8 → average 11
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11 × 2.66 = 29.3. Upper limit −3.5, lower limit −62.1.

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.