Colonial Heights: 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 8.

3rd The average 3rd grader scores 31 points under the grade 3 bar. 2405 vs. 2436.
4th The average 4th grader scores 13 points under the grade 3 bar. 2423 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores 40 points under the grade 4 bar. 2445 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores just under the grade 4 bar. 2481 vs. 2485. The 6th-grade bar is 2552.
7th The average 7th grader scores 23 points under the grade 4 bar. 2462 vs. 2485. The 7th-grade bar is 2567.
8th The average 8th grader scores 12 points under the grade 4 bar. 2473 vs. 2485. The 8th-grade bar is 2586.

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	78,949	2394.4	− 2436	−41.6	× 82 / 409	−8.3
4	78,950	2430.5	− 2485	−54.5	× 59 / 409	−7.9
5	78,953	2460.8	− 2528	−67.2	× 60 / 409	−9.9
6	78,954	2459.3	− 2552	−92.7	× 88 / 409	−19.9
7	78,957	2489.1	− 2567	−77.9	× 75 / 409	−14.3
8	78,958	2500.4	− 2586	−85.6	× 45 / 409	−9.4
Sum, rounded to a whole point						−70

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	73,157	2394.3	− 2436	−41.7	× 52 / 381	−5.7
4	73,159	2426.1	− 2485	−58.9	× 79 / 381	−12.2
5	73,160	2483.9	− 2528	−44.1	× 62 / 381	−7.2
6	73,163	2462.5	− 2552	−89.5	× 64 / 381	−15
7	73,164	2489.9	− 2567	−77.1	× 51 / 381	−10.3
8	73,166	2496.6	− 2586	−89.4	× 73 / 381	−17.1
Sum, rounded to a whole point						−68

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,119	2398.9	− 2436	−37.1	× 50 / 378	−4.9
4	75,122	2422.2	− 2485	−62.8	× 60 / 378	−10
5	75,123	2456.2	− 2528	−71.8	× 88 / 378	−16.7
6	75,125	2482.7	− 2552	−69.3	× 60 / 378	−11
7	75,128	2487.5	− 2567	−79.5	× 71 / 378	−14.9
8	75,129	2528.0	− 2586	−58	× 49 / 378	−7.5
Sum, rounded to a whole point						−65

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,311	2376.5	− 2436	−59.5	× 64 / 384	−9.9
4	75,313	2428.2	− 2485	−56.8	× 56 / 384	−8.3
5	75,314	2473.7	− 2528	−54.3	× 62 / 384	−8.8
6	75,317	2477.2	− 2552	−74.8	× 85 / 384	−16.6
7	75,318	2488.1	− 2567	−78.9	× 48 / 384	−9.9
8	75,320	2501.5	− 2586	−84.5	× 69 / 384	−15.2
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	75,843	2409.5	− 2436	−26.5	× 69 / 374	−4.9
4	75,844	2421.7	− 2485	−63.3	× 61 / 374	−10.3
5	75,845	2464.9	− 2528	−63.1	× 57 / 374	−9.6
6	75,846	2474.3	− 2552	−77.7	× 64 / 374	−13.3
7	75,847	2493.1	− 2567	−73.9	× 71 / 374	−14
8	75,848	2495.3	− 2586	−90.7	× 52 / 374	−12.6
Sum, rounded to a whole point						−65

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	74,402	2358.2	− 2436	−77.8	× 50 / 334	−11.6
4	74,403	2403.2	− 2485	−81.8	× 57 / 334	−14
5	74,404	2430.0	− 2528	−98	× 62 / 334	−18.2
6	74,405	2414.0	− 2552	−138	× 65 / 334	−26.9
7	74,406	2458.2	− 2567	−108.8	× 45 / 334	−14.7
8	74,407	2455.3	− 2586	−130.7	× 55 / 334	−21.5
Sum, rounded to a whole point						−107

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,987	2405.6	− 2436	−30.4	× 46 / 349	−4
4	75,988	2455.4	− 2485	−29.6	× 60 / 349	−5.1
5	75,989	2449.2	− 2528	−78.8	× 65 / 349	−14.7
6	75,990	2470.7	− 2552	−81.3	× 64 / 349	−14.9
7	75,991	2461.6	− 2567	−105.4	× 67 / 349	−20.2
8	75,992	2470.0	− 2586	−116	× 47 / 349	−15.6
Sum, rounded to a whole point						−75

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,973	2425.2	− 2436	−10.8	× 49 / 356	−1.5
4	75,974	2440.9	− 2485	−44.1	× 55 / 356	−6.8
5	75,975	2462.0	− 2528	−66	× 66 / 356	−12.2
6	75,976	2439.2	− 2552	−112.8	× 64 / 356	−20.3
7	75,977	2480.3	− 2567	−86.7	× 49 / 356	−11.9
8	75,978	2466.0	− 2586	−120	× 73 / 356	−24.6
Sum, rounded to a whole point						−77

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,970	2410.1	− 2436	−25.9	× 49 / 359	−3.5
4	75,971	2452.0	− 2485	−33	× 61 / 359	−5.6
5	75,972	2453.9	− 2528	−74.1	× 61 / 359	−12.6
6	75,973	2459.0	− 2552	−93	× 64 / 359	−16.6
7	75,974	2470.0	− 2567	−97	× 72 / 359	−19.5
8	75,975	2478.4	− 2586	−107.6	× 52 / 359	−15.6
Sum, rounded to a whole point						−73

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,643	2382.2	− 2436	−53.8	× 70 / 378	−10
4	75,644	2442.1	− 2485	−42.9	× 51 / 378	−5.8
5	75,645	2448.9	− 2528	−79.1	× 64 / 378	−13.4
6	75,646	2468.3	− 2552	−83.7	× 63 / 378	−14
7	75,647	2464.6	− 2567	−102.4	× 55 / 378	−14.9
8	75,648	2460.0	− 2586	−126	× 75 / 378	−25
Sum, rounded to a whole point						−83

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	75,553	2405.1	− 2436	−30.9	× 48 / 344	−4.3
4	75,554	2423.0	− 2485	−62	× 64 / 344	−11.5
5	75,555	2444.7	− 2528	−83.3	× 61 / 344	−14.8
6	75,556	2480.5	− 2552	−71.5	× 57 / 344	−11.8
7	75,557	2462.1	− 2567	−104.9	× 63 / 344	−19.2
8	75,558	2473.4	− 2586	−112.6	× 51 / 344	−16.7
Sum, rounded to a whole point						−78

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −70, −68, −65, −69, −65, −107, −75, −77, −73, −83, −78 → −75.5
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 2 · 2016→2017: 3 · 2017→2018: 4 · 2018→2019: 4 · 2019→2021: 42 · 2021→2022: 32 · 2022→2023: 2 · 2023→2024: 4 · 2024→2025: 10 · 2025→2026: 5 → average 10.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.8 × 2.66 = 28.7. Upper limit −46.8, lower limit −104.2.

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.