North County Joint Union Elementary: math

The shaded band is this district'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.

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	63,908	2424.3	− 2436	−11.7	× 85 / 511	−1.9
4	63,911	2500.5	− 2485	15.5	× 73 / 511	2.2
5	63,912	2480.2	− 2528	−47.8	× 91 / 511	−8.5
6	63,915	2513.8	− 2552	−38.2	× 90 / 511	−6.7
7	63,916	2537.0	− 2567	−30	× 83 / 511	−4.9
8	63,919	2552.6	− 2586	−33.4	× 89 / 511	−5.8
Sum, rounded to a whole point						−26

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	59,260	2456.6	− 2436	20.6	× 87 / 526	3.4
4	59,261	2460.5	− 2485	−24.5	× 87 / 526	−4.1
5	59,263	2522.3	− 2528	−5.7	× 77 / 526	−0.8
6	59,265	2529.5	− 2552	−22.5	× 95 / 526	−4.1
7	59,268	2527.2	− 2567	−39.8	× 92 / 526	−7
8	59,270	2558.5	− 2586	−27.5	× 88 / 526	−4.6
Sum, rounded to a whole point						−17

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	60,998	2465.7	− 2436	29.7	× 68 / 506	4
4	61,001	2477.4	− 2485	−7.6	× 90 / 506	−1.4
5	61,003	2497.5	− 2528	−30.5	× 90 / 506	−5.4
6	61,005	2548.3	− 2552	−3.7	× 77 / 506	−0.6
7	61,007	2545.8	− 2567	−21.2	× 92 / 506	−3.9
8	61,008	2562.5	− 2586	−23.5	× 89 / 506	−4.1
Sum, rounded to a whole point						−11

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	61,123	2466.7	− 2436	30.7	× 71 / 500	4.4
4	61,126	2492.2	− 2485	7.2	× 73 / 500	1.1
5	61,127	2513.8	− 2528	−14.2	× 92 / 500	−2.6
6	61,130	2528.9	− 2552	−23.1	× 93 / 500	−4.3
7	61,131	2554.0	− 2567	−13	× 80 / 500	−2.1
8	61,134	2594.2	− 2586	8.2	× 91 / 500	1.5
Sum, rounded to a whole point						−2

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	61,355	2470.2	− 2436	34.2	× 78 / 497	5.4
4	61,356	2485.1	− 2485	0.1	× 75 / 497	0
5	61,357	2508.7	− 2528	−19.3	× 74 / 497	−2.9
6	61,358	2521.7	− 2552	−30.3	× 94 / 497	−5.7
7	61,359	2540.6	− 2567	−26.4	× 97 / 497	−5.2
8	61,360	2616.1	− 2586	30.1	× 79 / 497	4.8
Sum, rounded to a whole point						−4

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	61,450	2456.5	− 2436	20.5	× 61 / 463	2.7
4	61,451	2475.1	− 2485	−9.9	× 77 / 463	−1.6
5	61,452	2479.2	− 2528	−48.8	× 79 / 463	−8.3
6	61,453	2505.6	− 2552	−46.4	× 84 / 463	−8.4
7	61,454	2523.1	− 2567	−43.9	× 82 / 463	−7.8
8	61,455	2574.0	− 2586	−12	× 80 / 463	−2.1
Sum, rounded to a whole point						−26

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	61,400	2439.1	− 2436	3.1	× 89 / 493	0.6
4	61,401	2497.5	− 2485	12.5	× 70 / 493	1.8
5	61,402	2487.1	− 2528	−40.9	× 83 / 493	−6.9
6	61,403	2467.2	− 2552	−84.8	× 82 / 493	−14.1
7	61,404	2544.4	− 2567	−22.6	× 88 / 493	−4
8	61,405	2552.1	− 2586	−33.9	× 81 / 493	−5.6
Sum, rounded to a whole point						−28

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	61,337	2463.5	− 2436	27.5	× 88 / 508	4.8
4	61,338	2500.0	− 2485	15	× 87 / 508	2.6
5	61,339	2519.3	− 2528	−8.7	× 75 / 508	−1.3
6	61,340	2520.3	− 2552	−31.7	× 90 / 508	−5.6
7	61,341	2530.4	− 2567	−36.6	× 81 / 508	−5.8
8	61,342	2590.8	− 2586	4.8	× 87 / 508	0.8
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	61,086	2459.9	− 2436	23.9	× 68 / 482	3.4
4	61,087	2527.8	− 2485	42.8	× 86 / 482	7.6
5	61,088	2509.9	− 2528	−18.1	× 88 / 482	−3.3
6	61,089	2557.0	− 2552	5	× 73 / 482	0.8
7	61,090	2569.8	− 2567	2.8	× 84 / 482	0.5
8	61,091	2553.0	− 2586	−33	× 83 / 482	−5.7
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	61,035	2466.5	− 2436	30.5	× 84 / 483	5.3
4	61,036	2508.6	− 2485	23.6	× 68 / 483	3.3
5	61,037	2527.4	− 2528	−0.6	× 86 / 483	−0.1
6	61,038	2533.9	− 2552	−18.1	× 83 / 483	−3.1
7	61,039	2576.2	− 2567	9.2	× 79 / 483	1.5
8	61,040	2585.7	− 2586	−0.3	× 83 / 483	−0.1
Sum, rounded to a whole point						7

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −26, −17, −11, −2, −4, −26, −28, −5, 3, 7 → −10.9
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: 6 · 2017→2018: 9 · 2018→2019: 2 · 2019→2022: 22 · 2022→2023: 2 · 2023→2024: 23 · 2024→2025: 8 · 2025→2026: 4 → average 9.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.4 × 2.66 = 25. Upper limit 14.1, lower limit −35.9.

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 — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.

Schools in North County Joint Union Elementary

K–8 schools

Spring Grove Elementary