Butte Vista 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 8.

All students

3rd The average 3rd grader scores just under the grade 3 bar. 2435 vs. 2436.
4th The average 4th grader scores 34 points under the grade 4 bar. 2452 vs. 2485.
5th The average 5th grader scores 33 points under the grade 5 bar. 2495 vs. 2528.
6th The average 6th grader meets the grade 6 bar. 2553 vs. 2552.
7th The average 7th grader scores just under the grade 6 bar. 2548 vs. 2552. The 7th-grade bar is 2567.
8th The average 8th grader meets the grade 8 bar. 2602 vs. 2586.

Students fluent in English

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

Grade bars 3rd 70 students Meets the grade 3 bar. 4th 72 students 24 points under the grade 4 bar.

English learners

Students leave this group as they become fluent, so its average stays low even where they learn well.

Grade bars 3rd 11 students 71 points under the grade 3 bar. 4th 13 students 39 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	99,038	2429.7	− 2436	−6.3	× 115 / 701	−1
4	99,041	2464.7	− 2485	−20.3	× 103 / 701	−3
5	99,042	2503.8	− 2528	−24.2	× 109 / 701	−3.8
6	99,045	2562.3	− 2552	10.3	× 103 / 701	1.5
7	99,046	2543.2	− 2567	−23.8	× 133 / 701	−4.5
8	99,049	2571.1	− 2586	−14.9	× 138 / 701	−2.9
Sum, rounded to a whole point						−14

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,806	2421.8	− 2436	−14.2	× 105 / 661	−2.3
4	91,808	2462.7	− 2485	−22.3	× 122 / 661	−4.1
5	91,810	2516.0	− 2528	−12	× 98 / 661	−1.8
6	91,813	2548.8	− 2552	−3.2	× 108 / 661	−0.5
7	91,814	2598.1	− 2567	31.1	× 97 / 661	4.6
8	91,817	2581.4	− 2586	−4.6	× 131 / 661	−0.9
Sum, rounded to a whole point						−5

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,580	2427.7	− 2436	−8.3	× 80 / 592	−1.1
4	94,583	2458.2	− 2485	−26.8	× 99 / 592	−4.5
5	94,584	2507.8	− 2528	−20.2	× 111 / 592	−3.8
6	94,586	2558.2	− 2552	6.2	× 100 / 592	1
7	94,588	2571.0	− 2567	4	× 101 / 592	0.7
8	94,590	2615.8	− 2586	29.8	× 101 / 592	5.1
Sum, rounded to a whole point						−3

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,788	2440.2	− 2436	4.2	× 83 / 601	0.6
4	94,791	2468.3	− 2485	−16.7	× 83 / 601	−2.3
5	94,792	2493.3	− 2528	−34.7	× 97 / 601	−5.6
6	94,795	2545.6	− 2552	−6.4	× 127 / 601	−1.4
7	94,796	2574.0	− 2567	7	× 102 / 601	1.2
8	94,799	2585.2	− 2586	−0.8	× 109 / 601	−0.1
Sum, rounded to a whole point						−8

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,438	2442.4	− 2436	6.4	× 95 / 591	1
4	95,439	2490.3	− 2485	5.3	× 94 / 591	0.8
5	95,440	2507.6	− 2528	−20.4	× 84 / 591	−2.9
6	95,441	2512.4	− 2552	−39.6	× 100 / 591	−6.7
7	95,442	2584.8	− 2567	17.8	× 126 / 591	3.8
8	95,443	2581.8	− 2586	−4.2	× 92 / 591	−0.7
Sum, rounded to a whole point						−5

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,642	2445.0	− 2436	9	× 74 / 561	1.2
4	95,643	2466.9	− 2485	−18.1	× 94 / 561	−3
5	95,644	2475.3	− 2528	−52.7	× 96 / 561	−9
6	95,645	2560.2	− 2552	8.2	× 103 / 561	1.5
7	95,646	2548.8	− 2567	−18.2	× 99 / 561	−3.2
8	95,647	2536.1	− 2586	−49.9	× 95 / 561	−8.5
Sum, rounded to a whole point						−21

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,524	2461.7	− 2436	25.7	× 88 / 566	4
4	95,525	2474.9	− 2485	−10.1	× 76 / 566	−1.4
5	95,526	2501.1	− 2528	−26.9	× 95 / 566	−4.5
6	95,527	2518.7	− 2552	−33.3	× 111 / 566	−6.5
7	95,528	2563.0	− 2567	−4	× 97 / 566	−0.7
8	95,529	2593.2	− 2586	7.2	× 99 / 566	1.3
Sum, rounded to a whole point						−8

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,401	2448.2	− 2436	12.2	× 86 / 571	1.8
4	95,402	2483.5	− 2485	−1.5	× 95 / 571	−0.2
5	95,403	2484.9	− 2528	−43.1	× 80 / 571	−6
6	95,404	2550.0	− 2552	−2	× 96 / 571	−0.3
7	95,405	2552.2	− 2567	−14.8	× 104 / 571	−2.7
8	95,406	2593.8	− 2586	7.8	× 110 / 571	1.5
Sum, rounded to a whole point						−6

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	95,127	2427.8	− 2436	−8.2	× 87 / 554	−1.3
4	95,128	2465.3	− 2485	−19.7	× 90 / 554	−3.2
5	95,129	2502.6	− 2528	−25.4	× 91 / 554	−4.2
6	95,130	2528.7	− 2552	−23.3	× 89 / 554	−3.7
7	95,131	2570.2	− 2567	3.2	× 96 / 554	0.6
8	95,132	2576.8	− 2586	−9.2	× 101 / 554	−1.7
Sum, rounded to a whole point						−14

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	94,739	2434.8	− 2436	−1.2	× 81 / 541	−0.2
4	94,740	2451.5	− 2485	−33.5	× 85 / 541	−5.3
5	94,741	2494.7	− 2528	−33.3	× 90 / 541	−5.5
6	94,742	2552.7	− 2552	0.7	× 92 / 541	0.1
7	94,743	2548.0	− 2567	−19	× 94 / 541	−3.3
8	94,744	2602.3	− 2586	16.3	× 99 / 541	3
Sum, rounded to a whole point						−11

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −14, −5, −3, −8, −5, −21, −8, −6, −14, −11 → −9.5
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 9 · 2016→2017: 2 · 2017→2018: 5 · 2018→2019: 3 · 2019→2022: 16 · 2022→2023: 13 · 2023→2024: 2 · 2024→2025: 8 · 2025→2026: 3 → average 6.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 6.8 × 2.66 = 18.1. Upper limit 8.6, lower limit −27.6.

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.