Rockdale Visual & Performing Arts Magnet: 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.

3rd The average 3rd grader meets the grade 3 bar. 2471 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2521 vs. 2485.
5th The average 5th grader scores 21 points under the grade 5 bar. 2507 vs. 2528.
6th The average 6th grader meets the grade 6 bar. 2593 vs. 2552.

2026 results. "Meets standard" is the state's mark for being on track for that grade.

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	31,829	2404.9	− 2436	−31.1	× 50 / 185	−8.4
4	31,832	2452.9	− 2485	−32.1	× 49 / 185	−8.5
5	31,833	2465.1	− 2528	−62.9	× 34 / 185	−11.6
6	31,836	2494.9	− 2552	−57.1	× 52 / 185	−16
Sum, rounded to a whole point						−45

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,046	2437.7	− 2436	1.7	× 48 / 184	0.4
4	30,048	2450.6	− 2485	−34.4	× 47 / 184	−8.8
5	30,050	2469.2	− 2528	−58.8	× 56 / 184	−17.9
6	30,052	2506.0	− 2552	−46	× 33 / 184	−8.3
Sum, rounded to a whole point						−34

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,611	2471.4	− 2436	35.4	× 41 / 192	7.6
4	30,613	2450.0	− 2485	−35	× 50 / 192	−9.1
5	30,614	2491.7	− 2528	−36.3	× 47 / 192	−8.9
6	30,617	2527.1	− 2552	−24.9	× 54 / 192	−7
Sum, rounded to a whole point						−17

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,661	2451.2	− 2436	15.2	× 50 / 206	3.7
4	30,663	2510.9	− 2485	25.9	× 51 / 206	6.4
5	30,665	2468.5	− 2528	−59.5	× 53 / 206	−15.3
6	30,667	2548.5	− 2552	−3.5	× 52 / 206	−0.9
Sum, rounded to a whole point						−6

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,838	2454.0	− 2436	18	× 41 / 198	3.7
4	30,839	2489.5	− 2485	4.5	× 54 / 198	1.2
5	30,840	2492.9	− 2528	−35.1	× 57 / 198	−10.1
6	30,841	2508.9	− 2552	−43.1	× 46 / 198	−10
Sum, rounded to a whole point						−15

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,865	2453.0	− 2436	17	× 41 / 171	4.1
4	30,866	2461.1	− 2485	−23.9	× 42 / 171	−5.9
5	30,867	2516.2	− 2528	−11.8	× 48 / 171	−3.3
6	30,868	2540.9	− 2552	−11.1	× 40 / 171	−2.6
Sum, rounded to a whole point						−8

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,922	2481.2	− 2436	45.2	× 33 / 166	9
4	30,923	2480.2	− 2485	−4.8	× 45 / 166	−1.3
5	30,924	2497.2	− 2528	−30.8	× 45 / 166	−8.3
6	30,925	2569.7	− 2552	17.7	× 43 / 166	4.6
Sum, rounded to a whole point						4

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,788	2449.1	− 2436	13.1	× 45 / 177	3.3
4	30,789	2506.7	− 2485	21.7	× 42 / 177	5.1
5	30,790	2541.7	− 2528	13.7	× 44 / 177	3.4
6	30,791	2545.4	− 2552	−6.6	× 46 / 177	−1.7
Sum, rounded to a whole point						10

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,647	2462.6	− 2436	26.6	× 38 / 172	5.9
4	30,648	2504.8	− 2485	19.8	× 45 / 172	5.2
5	30,649	2543.6	− 2528	15.6	× 46 / 172	4.2
6	30,650	2577.4	− 2552	25.4	× 43 / 172	6.4
Sum, rounded to a whole point						22

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	30,633	2470.9	− 2436	34.9	× 43 / 178	8.4
4	30,634	2520.7	− 2485	35.7	× 40 / 178	8
5	30,635	2506.8	− 2528	−21.2	× 49 / 178	−5.8
6	30,636	2592.5	− 2552	40.5	× 46 / 178	10.5
Sum, rounded to a whole point						21

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −45, −34, −17, −6, −15, −8, 4, 10, 22, 21 → −6.8
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: 17 · 2017→2018: 11 · 2018→2019: 9 · 2019→2022: 7 · 2022→2023: 12 · 2023→2024: 6 · 2024→2025: 12 · 2025→2026: 1 → average 9.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.6 × 2.66 = 25.5. Upper limit 18.7, lower limit −32.3.

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.