Helendale 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	66,134	2417.3	− 2436	−18.7	× 71 / 443	−3
4	66,136	2423.2	− 2485	−61.8	× 68 / 443	−9.5
5	66,138	2457.0	− 2528	−71	× 83 / 443	−13.3
6	66,140	2512.2	− 2552	−39.8	× 55 / 443	−4.9
7	66,142	2462.7	− 2567	−104.3	× 54 / 443	−12.7
8	66,144	2454.6	− 2586	−131.4	× 67 / 443	−19.9
11	66,146	2580.6	− 2628	−47.4	× 45 / 443	−4.8
Sum, rounded to a whole point						−68

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	61,328	2431.5	− 2436	−4.5	× 83 / 553	−0.7
4	61,330	2441.8	− 2485	−43.2	× 77 / 553	−6
5	61,331	2444.0	− 2528	−84	× 77 / 553	−11.7
6	61,334	2483.3	− 2552	−68.7	× 97 / 553	−12.1
7	61,335	2509.4	− 2567	−57.6	× 68 / 553	−7.1
8	61,338	2478.8	− 2586	−107.2	× 71 / 553	−13.8
11	61,339	2552.5	− 2628	−75.5	× 80 / 553	−10.9
Sum, rounded to a whole point						−62

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,106	2421.2	− 2436	−14.8	× 89 / 603	−2.2
4	63,108	2450.2	− 2485	−34.8	× 80 / 603	−4.6
5	63,109	2474.3	− 2528	−53.7	× 77 / 603	−6.9
6	63,112	2461.4	− 2552	−90.6	× 87 / 603	−13.1
7	63,114	2488.5	− 2567	−78.5	× 108 / 603	−14.1
8	63,116	2501.3	− 2586	−84.7	× 79 / 603	−11.1
11	63,117	2527.5	− 2628	−100.5	× 83 / 603	−13.8
Sum, rounded to a whole point						−66

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,187	2428.8	− 2436	−7.2	× 77 / 617	−0.9
4	63,190	2463.8	− 2485	−21.2	× 83 / 617	−2.9
5	63,191	2499.1	− 2528	−28.9	× 76 / 617	−3.6
6	63,194	2498.5	− 2552	−53.5	× 76 / 617	−6.6
7	63,195	2471.1	− 2567	−95.9	× 99 / 617	−15.4
8	63,198	2482.1	− 2586	−103.9	× 105 / 617	−17.7
11	63,199	2491.9	− 2628	−136.1	× 101 / 617	−22.3
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	63,462	2456.6	− 2436	20.6	× 69 / 543	2.6
4	63,463	2486.0	− 2485	1	× 70 / 543	0.1
5	63,464	2482.4	− 2528	−45.6	× 82 / 543	−6.9
6	63,465	2529.4	− 2552	−22.6	× 78 / 543	−3.2
7	63,466	2501.1	− 2567	−65.9	× 75 / 543	−9.1
8	63,467	2516.4	− 2586	−69.6	× 93 / 543	−11.9
11	63,468	2525.6	− 2628	−102.4	× 76 / 543	−14.3
Sum, rounded to a whole point						−43

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	62,069	2407.2	− 2436	−28.8	× 84 / 570	−4.2
4	62,070	2419.6	− 2485	−65.4	× 77 / 570	−8.8
5	62,071	2448.2	− 2528	−79.8	× 80 / 570	−11.2
6	62,072	2469.9	− 2552	−82.1	× 88 / 570	−12.7
7	62,073	2475.4	− 2567	−91.6	× 82 / 570	−13.2
8	62,074	2520.1	− 2586	−65.9	× 88 / 570	−10.2
11	62,075	2527.4	− 2628	−100.6	× 71 / 570	−12.5
Sum, rounded to a whole point						−73

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,537	2410.8	− 2436	−25.2	× 73 / 612	−3
4	63,538	2447.5	− 2485	−37.5	× 85 / 612	−5.2
5	63,539	2435.7	− 2528	−92.3	× 78 / 612	−11.8
6	63,540	2506.2	− 2552	−45.8	× 81 / 612	−6.1
7	63,541	2470.0	− 2567	−97	× 98 / 612	−15.5
8	63,542	2484.9	− 2586	−101.1	× 93 / 612	−15.4
11	63,543	2490.6	− 2628	−137.4	× 104 / 612	−23.3
Sum, rounded to a whole point						−80

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,480	2410.4	− 2436	−25.6	× 67 / 566	−3
4	63,481	2482.9	− 2485	−2.1	× 71 / 566	−0.3
5	63,482	2468.0	− 2528	−60	× 90 / 566	−9.5
6	63,483	2516.0	− 2552	−36	× 76 / 566	−4.8
7	63,484	2497.0	− 2567	−70	× 94 / 566	−11.6
8	63,485	2485.9	− 2586	−100.1	× 94 / 566	−16.6
11	63,486	2490.1	− 2628	−137.9	× 74 / 566	−18
Sum, rounded to a whole point						−64

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,452	2422.2	− 2436	−13.8	× 92 / 569	−2.2
4	63,453	2463.5	− 2485	−21.5	× 67 / 569	−2.5
5	63,454	2468.9	− 2528	−59.1	× 72 / 569	−7.5
6	63,455	2513.9	− 2552	−38.1	× 88 / 569	−5.9
7	63,456	2481.0	− 2567	−86	× 86 / 569	−13
8	63,457	2503.4	− 2586	−82.6	× 88 / 569	−12.8
11	63,458	2526.8	− 2628	−101.2	× 76 / 569	−13.5
Sum, rounded to a whole point						−57

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,218	2420.1	− 2436	−15.9	× 87 / 573	−2.4
4	63,219	2445.1	− 2485	−39.9	× 93 / 573	−6.5
5	63,220	2482.2	− 2528	−45.8	× 66 / 573	−5.3
6	63,221	2519.9	− 2552	−32.1	× 76 / 573	−4.3
7	63,222	2494.9	− 2567	−72.1	× 90 / 573	−11.3
8	63,223	2475.5	− 2586	−110.5	× 85 / 573	−16.4
11	63,224	2525.2	− 2628	−102.8	× 76 / 573	−13.6
Sum, rounded to a whole point						−60

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	63,182	2407.1	− 2436	−28.9	× 83 / 603	−4
4	63,183	2437.0	− 2485	−48	× 90 / 603	−7.2
5	63,184	2477.3	− 2528	−50.7	× 94 / 603	−7.9
6	63,185	2497.0	− 2552	−55	× 82 / 603	−7.5
7	63,186	2496.3	− 2567	−70.7	× 82 / 603	−9.6
8	63,187	2483.1	− 2586	−102.9	× 83 / 603	−14.2
11	63,188	2567.3	− 2628	−60.7	× 89 / 603	−9
Sum, rounded to a whole point						−59

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −68, −62, −66, −69, −43, −73, −80, −64, −57, −60, −59 → −63.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 6 · 2016→2017: 4 · 2017→2018: 3 · 2018→2019: 26 · 2019→2021: 30 · 2021→2022: 7 · 2022→2023: 16 · 2023→2024: 7 · 2024→2025: 3 · 2025→2026: 1 → average 10.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.3 × 2.66 = 27.4. Upper limit −36.3, lower limit −91.1.

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 — 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.

Helendale Elementary