21st Century Learning Institute: 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.

6th The average 6th grader scores just under the grade 6 bar. 2545 vs. 2552.
7th The average 7th grader meets the grade 7 bar. 2589 vs. 2567.
8th The average 8th grader scores 12 points under the grade 8 bar. 2574 vs. 2586.
11th The average 11th grader scores 16 points under the grade 11 bar. 2612 vs. 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.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	55,578	2459.2	− 2628	−168.8	× 40 / 40	−168.8
Sum, rounded to a whole point						−169

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	51,615	2494.6	− 2586	−91.4	× 11 / 45	−22.3
11	51,617	2474.3	− 2628	−153.7	× 34 / 45	−116.1
Sum, rounded to a whole point						−138

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	53,103	2507.3	− 2628	−120.7	× 14 / 14	−120.7
Sum, rounded to a whole point						−121

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	53,192	2507.6	− 2628	−120.4	× 25 / 25	−120.4
Sum, rounded to a whole point						−120

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	53,417	2504.3	− 2586	−81.7	× 11 / 47	−19.1
11	53,418	2468.6	− 2628	−159.4	× 36 / 47	−122.1
Sum, rounded to a whole point						−141

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	52,199	2541.3	− 2628	−86.7	× 45 / 45	−86.7
Sum, rounded to a whole point						−87

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	53,420	2404.6	− 2436	−31.4	× 27 / 245	−3.5
4	53,421	2450.7	− 2485	−34.3	× 22 / 245	−3.1
5	53,422	2449.1	− 2528	−78.9	× 25 / 245	−8.1
6	53,423	2499.1	− 2552	−52.9	× 34 / 245	−7.3
7	53,424	2484.9	− 2567	−82.1	× 33 / 245	−11.1
8	53,425	2493.9	− 2586	−92.1	× 43 / 245	−16.2
11	53,426	2525.8	− 2628	−102.2	× 61 / 245	−25.4
Sum, rounded to a whole point						−75

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	53,370	2467.2	− 2485	−17.8	× 13 / 208	−1.1
5	53,371	2454.9	− 2528	−73.1	× 12 / 208	−4.2
6	53,372	2453.4	− 2552	−98.6	× 18 / 208	−8.5
7	53,373	2489.3	− 2567	−77.7	× 43 / 208	−16.1
8	53,374	2483.9	− 2586	−102.1	× 44 / 208	−21.6
11	53,375	2507.4	− 2628	−120.6	× 78 / 208	−45.2
Sum, rounded to a whole point						−97

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	53,227	2388.2	− 2436	−47.8	× 12 / 189	−3
5	53,229	2492.7	− 2528	−35.3	× 12 / 189	−2.2
6	53,230	2471.6	− 2552	−80.4	× 19 / 189	−8.1
7	53,231	2471.6	− 2567	−95.4	× 31 / 189	−15.6
8	53,232	2518.6	− 2586	−67.4	× 41 / 189	−14.6
11	53,233	2547.0	− 2628	−81	× 74 / 189	−31.7
Sum, rounded to a whole point						−75

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	52,968	2482.6	− 2485	−2.4	× 12 / 205	−0.1
6	52,970	2563.2	− 2552	11.2	× 20 / 205	1.1
7	52,971	2536.1	− 2567	−30.9	× 25 / 205	−3.8
8	52,972	2518.6	− 2586	−67.4	× 32 / 205	−10.5
11	52,973	2589.3	− 2628	−38.7	× 116 / 205	−21.9
Sum, rounded to a whole point						−35

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	52,903	2544.7	− 2552	−7.3	× 19 / 164	−0.8
7	52,904	2589.0	− 2567	22	× 26 / 164	3.5
8	52,905	2574.1	− 2586	−11.9	× 25 / 164	−1.8
11	52,906	2612.0	− 2628	−16	× 94 / 164	−9.2
Sum, rounded to a whole point						−8

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −169, −138, −121, −120, −141, −87, −75, −97, −75, −35, −8 → −96.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 31 · 2016→2017: 17 · 2017→2018: 1 · 2018→2019: 21 · 2019→2021: 54 · 2021→2022: 12 · 2022→2023: 22 · 2023→2024: 22 · 2024→2025: 40 · 2025→2026: 27 → average 24.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 24.7 × 2.66 = 65.7. Upper limit −31.2, lower limit −162.6.

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.