Bonny Doon 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 5.

3rd The average 3rd grader scores just under the grade 3 bar. 2433 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2492 vs. 2485.
5th The average 5th grader scores 13 points under the grade 4 bar. 2472 vs. 2485. The 5th-grade bar is 2528.

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	89,856	2384.8	− 2436	−51.2	× 20 / 53	−19.3
4	89,857	2470.5	− 2485	−14.5	× 15 / 53	−4.1
5	89,860	2515.7	− 2528	−12.3	× 18 / 53	−4.2
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	83,328	2463.4	− 2436	27.4	× 25 / 82	8.4
4	83,330	2502.1	− 2485	17.1	× 22 / 82	4.6
5	83,332	2555.9	− 2528	27.9	× 17 / 82	5.8
6	83,334	2572.5	− 2552	20.5	× 18 / 82	4.5
Sum, rounded to a whole point						23

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	85,645	2435.8	− 2436	−0.2	× 28 / 94	−0.1
4	85,647	2486.3	− 2485	1.3	× 30 / 94	0.4
5	85,650	2499.1	− 2528	−28.9	× 21 / 94	−6.5
6	85,651	2561.9	− 2552	9.9	× 15 / 94	1.6
Sum, rounded to a whole point						−5

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	85,873	2421.9	− 2436	−14.1	× 26 / 98	−3.7
4	85,874	2497.0	− 2485	12	× 27 / 98	3.3
5	85,877	2513.4	− 2528	−14.6	× 28 / 98	−4.2
6	85,879	2536.0	− 2552	−16	× 17 / 98	−2.8
Sum, rounded to a whole point						−7

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	86,470	2424.1	− 2436	−11.9	× 15 / 89	−2
4	86,471	2473.1	− 2485	−11.9	× 25 / 89	−3.3
5	86,472	2539.5	− 2528	11.5	× 27 / 89	3.5
6	86,473	2548.4	− 2552	−3.6	× 22 / 89	−0.9
Sum, rounded to a whole point						−3

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	86,729	2452.6	− 2436	16.6	× 14 / 68	3.4
4	86,730	2500.0	− 2485	15	× 20 / 68	4.4
5	86,731	2501.3	− 2528	−26.7	× 23 / 68	−9
6	86,732	2532.5	− 2552	−19.5	× 11 / 68	−3.2
Sum, rounded to a whole point						−4

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	86,651	2488.1	− 2436	52.1	× 12 / 56	11.2
4	86,652	2484.9	− 2485	−0.1	× 12 / 56	0
5	86,653	2498.5	− 2528	−29.5	× 20 / 56	−10.5
6	86,654	2527.3	− 2552	−24.7	× 12 / 56	−5.3
Sum, rounded to a whole point						−5

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	86,623	2487.7	− 2436	51.7	× 15 / 28	27.7
5	86,625	2507.1	− 2528	−20.9	× 13 / 28	−9.7
Sum, rounded to a whole point						18

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	86,307	2465.1	− 2436	29.1	× 19 / 44	12.6
4	86,308	2478.5	− 2485	−6.5	× 14 / 44	−2.1
5	86,309	2473.3	− 2528	−54.7	× 11 / 44	−13.7
Sum, rounded to a whole point						−3

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	86,050	2433.0	− 2436	−3	× 24 / 59	−1.2
4	86,051	2491.6	− 2485	6.6	× 20 / 59	2.2
5	86,052	2471.7	− 2528	−56.3	× 15 / 59	−14.3
Sum, rounded to a whole point						−13

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −28, 23, −5, −7, −3, −4, −5, 18, −3, −13 → −2.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 51 · 2016→2017: 28 · 2017→2018: 2 · 2018→2019: 4 · 2019→2022: 1 · 2022→2023: 1 · 2023→2024: 23 · 2024→2025: 21 · 2025→2026: 10 → average 15.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 15.7 × 2.66 = 41.8. Upper limit 39.1, lower limit −44.5.

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.