Trivium Charter School Adventure: 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 scores 39 points under the grade 3 bar. 2397 vs. 2436.
4th The average 4th grader scores 20 points under the grade 4 bar. 2465 vs. 2485.
5th The average 5th grader scores 33 points under the grade 5 bar. 2495 vs. 2528.
6th The average 6th grader scores 30 points under the grade 5 bar. 2498 vs. 2528. The 6th-grade bar is 2552.
7th The average 7th grader scores just under the grade 5 bar. 2525 vs. 2528. The 7th-grade bar is 2567.
8th The average 8th grader scores 11 points under the grade 8 bar. 2575 vs. 2586.
11th The average 11th grader scores just under the grade 11 bar. 2624 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.

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,087	2435.5	− 2436	−0.5	× 20 / 134	−0.1
4	81,088	2454.4	− 2485	−30.6	× 14 / 134	−3.2
5	81,089	2474.6	− 2528	−53.4	× 33 / 134	−13.2
6	81,090	2508.1	− 2552	−43.9	× 21 / 134	−6.9
7	81,091	2521.0	− 2567	−46	× 27 / 134	−9.3
8	81,092	2465.7	− 2586	−120.3	× 19 / 134	−17.1
Sum, rounded to a whole point						−50

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,300	2422.8	− 2436	−13.2	× 18 / 119	−2
4	81,301	2447.1	− 2485	−37.9	× 17 / 119	−5.4
5	81,302	2446.2	− 2528	−81.8	× 18 / 119	−12.4
6	81,303	2529.4	− 2552	−22.6	× 16 / 119	−3
7	81,304	2510.8	− 2567	−56.2	× 23 / 119	−10.9
8	81,305	2523.3	− 2586	−62.7	× 27 / 119	−14.2
Sum, rounded to a whole point						−48

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,262	2371.5	− 2436	−64.5	× 15 / 120	−8.1
4	81,263	2442.6	− 2485	−42.4	× 18 / 120	−6.4
5	81,264	2480.0	− 2528	−48	× 20 / 120	−8
6	81,265	2470.7	− 2552	−81.3	× 18 / 120	−12.2
7	81,266	2537.8	− 2567	−29.2	× 24 / 120	−5.8
8	81,267	2512.0	− 2586	−74	× 25 / 120	−15.4
Sum, rounded to a whole point						−56

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	81,274	2409.5	− 2436	−26.5	× 14 / 109	−3.4
4	81,275	2420.6	− 2485	−64.4	× 18 / 109	−10.6
5	81,276	2444.1	− 2528	−83.9	× 14 / 109	−10.8
6	81,277	2488.8	− 2552	−63.2	× 20 / 109	−11.6
7	81,278	2518.9	− 2567	−48.1	× 23 / 109	−10.1
8	81,279	2510.5	− 2586	−75.5	× 20 / 109	−13.9
Sum, rounded to a whole point						−60

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,942	2437.6	− 2436	1.6	× 22 / 140	0.3
4	80,943	2474.4	− 2485	−10.6	× 23 / 140	−1.7
5	80,944	2462.1	− 2528	−65.9	× 25 / 140	−11.8
6	80,945	2508.1	− 2552	−43.9	× 16 / 140	−5
7	80,946	2541.7	− 2567	−25.3	× 15 / 140	−2.7
8	80,947	2543.5	− 2586	−42.5	× 27 / 140	−8.2
11	80,948	2547.3	− 2628	−80.7	× 12 / 140	−6.9
Sum, rounded to a whole point						−36

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	80,864	2396.9	− 2436	−39.1	× 29 / 142	−8
4	80,865	2465.3	− 2485	−19.7	× 24 / 142	−3.3
5	80,866	2495.0	− 2528	−33	× 19 / 142	−4.4
6	80,867	2498.0	− 2552	−54	× 25 / 142	−9.5
7	80,868	2525.1	− 2567	−41.9	× 15 / 142	−4.4
8	80,869	2575.4	− 2586	−10.6	× 16 / 142	−1.2
11	80,870	2624.0	− 2628	−4	× 14 / 142	−0.4
Sum, rounded to a whole point						−31

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −50, −48, −56, −60, −36, −31 → −46.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2019→2022: 2 · 2022→2023: 8 · 2023→2024: 4 · 2024→2025: 24 · 2025→2026: 5 → average 8.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.6 × 2.66 = 22.9. Upper limit −23.9, lower limit −69.7.

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.