Blandford 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. 2434 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2500 vs. 2485.
5th The average 5th grader meets the grade 5 bar. 2533 vs. 2528.
6th The average 6th grader meets the grade 6 bar. 2570 vs. 2552.

Students fluent in English

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

Grade bars 3rd 60 students Meets the grade 3 bar. 4th 74 students Meets the grade 4 bar. 5th 85 students Meets the grade 5 bar. 6th 74 students Meets the grade 6 bar.

English learners

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

Grade bars 3rd 33 students 35 points under the grade 3 bar. 4th 26 students 38 points under the grade 4 bar. 5th 17 students 37 points under the grade 5 bar. 6th 16 students 11 points under the grade 4 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	39,751	2470.6	− 2436	34.6	× 101 / 391	8.9
4	39,753	2515.2	− 2485	30.2	× 103 / 391	8
5	39,755	2529.8	− 2528	1.8	× 94 / 391	0.4
6	39,757	2595.5	− 2552	43.5	× 93 / 391	10.3
Sum, rounded to a whole point						28

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,827	2469.2	− 2436	33.2	× 88 / 371	7.9
4	36,828	2538.6	− 2485	53.6	× 98 / 371	14.2
5	36,830	2567.1	− 2528	39.1	× 101 / 371	10.6
6	36,833	2599.7	− 2552	47.7	× 84 / 371	10.8
Sum, rounded to a whole point						43

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,605	2469.8	− 2436	33.8	× 122 / 408	10.1
4	37,606	2516.5	− 2485	31.5	× 91 / 408	7
5	37,608	2569.6	− 2528	41.6	× 98 / 408	10
6	37,610	2609.1	− 2552	57.1	× 97 / 408	13.6
Sum, rounded to a whole point						41

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,550	2453.5	− 2436	17.5	× 93 / 386	4.2
4	37,552	2529.8	− 2485	44.8	× 115 / 386	13.3
5	37,554	2561.4	− 2528	33.4	× 93 / 386	8
6	37,556	2625.9	− 2552	73.9	× 85 / 386	16.3
Sum, rounded to a whole point						42

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,760	2474.4	− 2436	38.4	× 78 / 371	8.1
4	37,761	2505.3	− 2485	20.3	× 90 / 371	4.9
5	37,762	2561.9	− 2528	33.9	× 113 / 371	10.3
6	37,763	2610.2	− 2552	58.2	× 90 / 371	14.1
Sum, rounded to a whole point						37

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,649	2448.2	− 2436	12.2	× 86 / 351	3
4	37,650	2495.7	− 2485	10.7	× 101 / 351	3.1
5	37,651	2525.6	− 2528	−2.4	× 90 / 351	−0.6
6	37,652	2598.9	− 2552	46.9	× 74 / 351	9.9
Sum, rounded to a whole point						15

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,694	2455.9	− 2436	19.9	× 100 / 369	5.4
4	37,695	2508.9	− 2485	23.9	× 83 / 369	5.4
5	37,696	2515.8	− 2528	−12.2	× 95 / 369	−3.1
6	37,697	2570.2	− 2552	18.2	× 91 / 369	4.5
Sum, rounded to a whole point						12

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,544	2451.1	− 2436	15.1	× 103 / 390	4
4	37,545	2502.0	− 2485	17	× 102 / 390	4.4
5	37,546	2489.0	− 2528	−39	× 89 / 390	−8.9
6	37,547	2574.3	− 2552	22.3	× 96 / 390	5.5
Sum, rounded to a whole point						5

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,321	2443.4	− 2436	7.4	× 99 / 385	1.9
4	37,322	2516.4	− 2485	31.4	× 105 / 385	8.6
5	37,323	2510.5	− 2528	−17.5	× 99 / 385	−4.5
6	37,324	2588.0	− 2552	36	× 82 / 385	7.7
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	37,305	2433.6	− 2436	−2.4	× 93 / 385	−0.6
4	37,306	2500.2	− 2485	15.2	× 100 / 385	3.9
5	37,307	2532.8	− 2528	4.8	× 102 / 385	1.3
6	37,308	2570.4	− 2552	18.4	× 90 / 385	4.3
Sum, rounded to a whole point						9

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 28, 43, 41, 42, 37, 15, 12, 5, 14, 9 → 24.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 15 · 2016→2017: 2 · 2017→2018: 1 · 2018→2019: 5 · 2019→2022: 22 · 2022→2023: 3 · 2023→2024: 7 · 2024→2025: 9 · 2025→2026: 5 → average 7.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.7 × 2.66 = 20.5. Upper limit 45.1, lower limit 4.1.

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.