Northern United - Humboldt Charter: 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 11.

3rd The average 3rd grader meets the grade 3 bar. 2463 vs. 2436.
4th The average 4th grader meets the grade 4 bar. 2492 vs. 2485.
5th The average 5th grader scores 31 points under the grade 5 bar. 2497 vs. 2528.
6th The average 6th grader scores 11 points under the grade 5 bar. 2517 vs. 2528. The 6th-grade bar is 2552.
8th The average 8th grader scores 22 points under the grade 5 bar. 2507 vs. 2528. The 8th-grade bar is 2586.
11th The average 11th grader scores just under the grade 7 bar. 2560 vs. 2567. The 11th-grade bar is 2628.

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.

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,862	2409.0	− 2436	−27	× 38 / 225	−4.6
4	12,863	2447.7	− 2485	−37.3	× 33 / 225	−5.5
5	12,864	2467.5	− 2528	−60.5	× 39 / 225	−10.5
6	12,865	2500.6	− 2552	−51.4	× 35 / 225	−8
7	12,866	2452.3	− 2567	−114.7	× 22 / 225	−11.2
8	12,867	2481.3	− 2586	−104.7	× 33 / 225	−15.4
11	12,868	2544.7	− 2628	−83.3	× 25 / 225	−9.3
Sum, rounded to a whole point						−64

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,694	2422.9	− 2436	−13.1	× 27 / 178	−2
4	12,695	2490.5	− 2485	5.5	× 24 / 178	0.7
5	12,696	2508.0	− 2528	−20	× 30 / 178	−3.4
6	12,697	2493.2	− 2552	−58.8	× 28 / 178	−9.2
7	12,698	2513.8	− 2567	−53.2	× 25 / 178	−7.5
8	12,699	2507.2	− 2586	−78.8	× 23 / 178	−10.2
11	12,700	2576.3	− 2628	−51.7	× 21 / 178	−6.1
Sum, rounded to a whole point						−38

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,879	2400.9	− 2436	−35.1	× 24 / 169	−5
4	12,880	2456.6	− 2485	−28.4	× 26 / 169	−4.4
5	12,881	2516.5	− 2528	−11.5	× 24 / 169	−1.6
6	12,882	2491.4	− 2552	−60.6	× 27 / 169	−9.7
7	12,883	2542.6	− 2567	−24.4	× 21 / 169	−3
8	12,884	2501.4	− 2586	−84.6	× 30 / 169	−15
11	12,885	2487.6	− 2628	−140.4	× 17 / 169	−14.1
Sum, rounded to a whole point						−53

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,860	2463.5	− 2436	27.5	× 34 / 148	6.3
4	12,861	2483.2	− 2485	−1.8	× 13 / 148	−0.2
5	12,862	2501.1	− 2528	−26.9	× 25 / 148	−4.5
6	12,863	2541.8	− 2552	−10.2	× 18 / 148	−1.2
7	12,864	2511.2	− 2567	−55.8	× 15 / 148	−5.7
8	12,865	2499.0	− 2586	−87	× 24 / 148	−14.1
11	12,866	2531.3	− 2628	−96.7	× 19 / 148	−12.4
Sum, rounded to a whole point						−32

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,815	2460.2	− 2436	24.2	× 24 / 139	4.2
4	12,816	2507.7	− 2485	22.7	× 27 / 139	4.4
6	12,818	2511.1	− 2552	−40.9	× 20 / 139	−5.9
7	12,819	2535.5	− 2567	−31.5	× 20 / 139	−4.5
8	12,820	2497.5	− 2586	−88.5	× 20 / 139	−12.7
11	12,821	2523.5	− 2628	−104.5	× 28 / 139	−21.1
Sum, rounded to a whole point						−36

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,791	2471.6	− 2436	35.6	× 17 / 146	4.1
4	12,792	2523.4	− 2485	38.4	× 26 / 146	6.8
5	12,793	2533.4	− 2528	5.4	× 26 / 146	1
7	12,795	2504.3	− 2567	−62.7	× 25 / 146	−10.7
8	12,796	2509.4	− 2586	−76.6	× 19 / 146	−10
11	12,797	2519.1	− 2628	−108.9	× 33 / 146	−24.6
Sum, rounded to a whole point						−33

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	12,809	2463.2	− 2436	27.2	× 26 / 164	4.3
4	12,810	2491.6	− 2485	6.6	× 20 / 164	0.8
5	12,811	2497.3	− 2528	−30.7	× 26 / 164	−4.9
6	12,812	2516.6	− 2552	−35.4	× 26 / 164	−5.6
8	12,814	2506.5	− 2586	−79.5	× 30 / 164	−14.5
11	12,815	2560.2	− 2628	−67.8	× 36 / 164	−14.9
Sum, rounded to a whole point						−35

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −64, −38, −53, −32, −36, −33, −35 → −41.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2019→2021: 26 · 2021→2022: 15 · 2022→2023: 21 · 2023→2024: 4 · 2024→2025: 3 · 2025→2026: 2 → average 11.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 11.8 × 2.66 = 31.4. Upper limit −10.2, lower limit −73.

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 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.