Lodestar: A Lighthouse Community Charter Public: 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.

Many students here are still learning English. The math test is written in English, with some translation help, and many of its questions are word problems. In 2026, 188 of the 406 students who took the math test were English learners.

All students

3rd The average 3rd grader scores 76 points under the grade 3 bar. 2361 vs. 2436.
4th The average 4th grader scores just under the grade 3 bar. 2428 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores 40 points under the grade 4 bar. 2446 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores 33 points under the grade 4 bar. 2452 vs. 2485. The 6th-grade bar is 2552.
7th The average 7th grader scores 32 points under the grade 4 bar. 2454 vs. 2485. The 7th-grade bar is 2567.
8th The average 8th grader scores just under the grade 5 bar. 2519 vs. 2528. The 8th-grade bar is 2586.
11th The average 11th grader scores 19 points under the grade 5 bar. 2509 vs. 2528. The 11th-grade bar is 2628.

Students fluent in English

Math with English out of the way. Includes students who have only ever spoken English.

Grade bars 3rd 23 students 45 points under the grade 3 bar. 4th 32 students 22 points under the grade 4 bar. 5th 25 students 42 points under the grade 5 bar. 6th 31 students 38 points under the grade 5 bar. 7th 31 students 41 points under the grade 5 bar. 8th 43 students 11 points under the grade 8 bar. 11th 33 students Just under the grade 5 bar.

English learners

Students leave this group as they become fluent, so its average stays low even where they learn well.

Grade bars 3rd 22 students 107 points under the grade 3 bar. 4th 21 students 60 points under the grade 3 bar. 5th 29 students 25 points under the grade 3 bar. 6th 39 students 15 points under the grade 3 bar. 7th 22 students 30 points under the grade 3 bar. 8th 34 students 37 points under the grade 4 bar. 11th 21 students Just under the grade 4 bar.

the group's average that grade's own bar the distance between

2026 results. "Meets standard" is the state's mark for being on track for that grade. The state leaves out any group of ten students or fewer, so a grade may be missing from the charts.

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.

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	2,427	2431.6	− 2552	−120.4	× 64 / 64	−120.4
Sum, rounded to a whole point						−120

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,423	2385.2	− 2436	−50.8	× 49 / 149	−16.7
6	2,424	2454.1	− 2552	−97.9	× 33 / 149	−21.7
7	2,427	2485.4	− 2567	−81.6	× 67 / 149	−36.7
Sum, rounded to a whole point						−75

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,440	2398.2	− 2436	−37.8	× 59 / 307	−7.3
4	2,441	2441.9	− 2485	−43.1	× 69 / 307	−9.7
6	2,442	2450.9	− 2552	−101.1	× 74 / 307	−24.4
7	2,443	2484.1	− 2567	−82.9	× 43 / 307	−11.6
8	2,444	2486.3	− 2586	−99.7	× 62 / 307	−20.1
Sum, rounded to a whole point						−73

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,325	2382.3	− 2436	−53.7	× 55 / 376	−7.9
4	2,326	2416.0	− 2485	−69	× 54 / 376	−9.9
5	2,327	2424.5	− 2528	−103.5	× 57 / 376	−15.7
6	2,328	2403.4	− 2552	−148.6	× 67 / 376	−26.5
7	2,329	2426.4	− 2567	−140.6	× 71 / 376	−26.5
8	2,330	2460.8	− 2586	−125.2	× 72 / 376	−24
Sum, rounded to a whole point						−110

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,360	2311.5	− 2436	−124.5	× 52 / 380	−17
4	2,361	2391.9	− 2485	−93.1	× 53 / 380	−13
5	2,362	2406.1	− 2528	−121.9	× 52 / 380	−16.7
6	2,363	2393.9	− 2552	−158.1	× 75 / 380	−31.2
7	2,364	2412.1	− 2567	−154.9	× 75 / 380	−30.6
8	2,365	2405.2	− 2586	−180.8	× 73 / 380	−34.7
Sum, rounded to a whole point						−143

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,312	2357.3	− 2436	−78.7	× 52 / 415	−9.9
4	2,313	2341.0	− 2485	−144	× 45 / 415	−15.6
5	2,314	2443.2	− 2528	−84.8	× 53 / 415	−10.8
6	2,315	2489.5	− 2552	−62.5	× 74 / 415	−11.1
7	2,316	2459.8	− 2567	−107.2	× 71 / 415	−18.3
8	2,317	2427.1	− 2586	−158.9	× 71 / 415	−27.2
11	2,318	2437.3	− 2628	−190.7	× 49 / 415	−22.5
Sum, rounded to a whole point						−115

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,276	2390.6	− 2436	−45.4	× 55 / 419	−6
4	2,277	2395.4	− 2485	−89.6	× 55 / 419	−11.8
5	2,278	2388.6	− 2528	−139.4	× 47 / 419	−15.6
6	2,279	2422.2	− 2552	−129.8	× 76 / 419	−23.5
7	2,280	2515.1	− 2567	−51.9	× 71 / 419	−8.8
8	2,281	2453.2	− 2586	−132.8	× 65 / 419	−20.6
11	2,282	2495.8	− 2628	−132.2	× 50 / 419	−15.8
Sum, rounded to a whole point						−102

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,250	2401.0	− 2436	−35	× 53 / 418	−4.4
4	2,251	2413.1	− 2485	−71.9	× 54 / 418	−9.3
5	2,252	2417.3	− 2528	−110.7	× 49 / 418	−13
6	2,253	2417.1	− 2552	−134.9	× 56 / 418	−18.1
7	2,254	2461.6	− 2567	−105.4	× 73 / 418	−18.4
8	2,255	2572.1	− 2586	−13.9	× 71 / 418	−2.4
11	2,256	2495.8	− 2628	−132.2	× 62 / 418	−19.6
Sum, rounded to a whole point						−85

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	2,206	2360.5	− 2436	−75.5	× 45 / 406	−8.4
4	2,207	2428.4	− 2485	−56.6	× 53 / 406	−7.4
5	2,208	2445.5	− 2528	−82.5	× 54 / 406	−11
6	2,209	2451.7	− 2552	−100.3	× 70 / 406	−17.3
7	2,210	2453.5	− 2567	−113.5	× 53 / 406	−14.8
8	2,211	2518.9	− 2586	−67.1	× 77 / 406	−12.7
11	2,212	2508.9	− 2628	−119.1	× 54 / 406	−15.8
Sum, rounded to a whole point						−87

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −120, −75, −73, −110, −143, −115, −102, −85, −87 → −101.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2017→2018: 45 · 2018→2019: 2 · 2019→2021: 37 · 2021→2022: 33 · 2022→2023: 28 · 2023→2024: 13 · 2024→2025: 17 · 2025→2026: 2 → average 22.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 22.1 × 2.66 = 58.8. Upper limit −42.3, lower limit −159.9.

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. From 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.