Libertas College Preparatory 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 8.

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, 80 of the 305 students who took the math test were English learners.

All students

4th The average 4th grader scores 41 points under the grade 4 bar. 2444 vs. 2485.
5th The average 5th grader scores 40 points under the grade 4 bar. 2445 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores 34 points under the grade 5 bar. 2494 vs. 2528. The 6th-grade bar is 2552.
7th The average 7th grader scores 10 points under the grade 5 bar. 2518 vs. 2528. The 7th-grade bar is 2567.
8th The average 8th grader scores 14 points under the grade 6 bar. 2539 vs. 2552. The 8th-grade bar is 2586.

Students fluent in English

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

Grade bars 4th 18 students 32 points under the grade 4 bar. 5th 36 students 30 points under the grade 4 bar. 6th 55 students 19 points under the grade 5 bar. 7th 63 students Just under the grade 5 bar. 8th 53 students Just under the grade 7 bar.

English learners

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

Grade bars 4th 11 students Just under the grade 3 bar. 5th 19 students Just under the grade 3 bar. 6th 16 students 42 points under the grade 4 bar. 7th 11 students 14 points under the grade 4 bar. 8th 23 students 10 points 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.

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	26,892	2463.5	− 2485	−21.5	× 57 / 107	−11.5
5	26,894	2482.0	− 2528	−46	× 50 / 107	−21.5
Sum, rounded to a whole point						−33

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	27,427	2448.5	− 2485	−36.5	× 41 / 163	−9.2
5	27,429	2519.3	− 2528	−8.7	× 54 / 163	−2.9
6	27,431	2507.5	− 2552	−44.5	× 68 / 163	−18.6
Sum, rounded to a whole point						−31

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	27,382	2497.6	− 2485	12.6	× 34 / 211	2
5	27,384	2551.0	− 2528	23	× 46 / 211	5
6	27,386	2532.2	− 2552	−19.8	× 66 / 211	−6.2
7	27,388	2539.8	− 2567	−27.2	× 65 / 211	−8.4
Sum, rounded to a whole point						−8

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	27,501	2525.5	− 2485	40.5	× 40 / 265	6.1
5	27,502	2512.4	− 2528	−15.6	× 44 / 265	−2.6
6	27,503	2546.2	− 2552	−5.8	× 65 / 265	−1.4
7	27,504	2564.8	− 2567	−2.2	× 59 / 265	−0.5
8	27,505	2559.3	− 2586	−26.7	× 57 / 265	−5.7
Sum, rounded to a whole point						−4

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	27,376	2441.1	− 2485	−43.9	× 25 / 281	−3.9
5	27,377	2465.8	− 2528	−62.2	× 36 / 281	−8
6	27,378	2492.0	− 2552	−60	× 74 / 281	−15.8
7	27,379	2516.3	− 2567	−50.7	× 74 / 281	−13.4
8	27,380	2514.5	− 2586	−71.5	× 72 / 281	−18.3
Sum, rounded to a whole point						−59

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	27,309	2464.0	− 2485	−21	× 22 / 275	−1.7
5	27,310	2463.7	− 2528	−64.3	× 38 / 275	−8.9
6	27,311	2475.9	− 2552	−76.1	× 67 / 275	−18.5
7	27,312	2523.7	− 2567	−43.3	× 74 / 275	−11.7
8	27,313	2555.9	− 2586	−30.1	× 74 / 275	−8.1
Sum, rounded to a whole point						−49

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	27,159	2491.3	− 2485	6.3	× 28 / 298	0.6
5	27,160	2500.6	− 2528	−27.4	× 45 / 298	−4.1
6	27,161	2500.5	− 2552	−51.5	× 75 / 298	−13
7	27,162	2524.7	− 2567	−42.3	× 75 / 298	−10.6
8	27,163	2556.5	− 2586	−29.5	× 75 / 298	−7.4
Sum, rounded to a whole point						−35

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	27,034	2440.5	− 2485	−44.5	× 30 / 297	−4.5
5	27,035	2493.6	− 2528	−34.4	× 49 / 297	−5.7
6	27,036	2500.8	− 2552	−51.2	× 73 / 297	−12.6
7	27,037	2522.2	− 2567	−44.8	× 74 / 297	−11.2
8	27,038	2533.2	− 2586	−52.8	× 71 / 297	−12.6
Sum, rounded to a whole point						−47

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	27,036	2443.7	− 2485	−41.3	× 29 / 305	−3.9
5	27,037	2445.3	− 2528	−82.7	× 55 / 305	−14.9
6	27,038	2494.3	− 2552	−57.7	× 71 / 305	−13.4
7	27,039	2517.8	− 2567	−49.2	× 74 / 305	−11.9
8	27,040	2538.5	− 2586	−47.5	× 76 / 305	−11.8
Sum, rounded to a whole point						−56

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −33, −31, −8, −4, −59, −49, −35, −47, −56 → −35.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2016→2017: 2 · 2017→2018: 23 · 2018→2019: 4 · 2019→2022: 55 · 2022→2023: 10 · 2023→2024: 14 · 2024→2025: 12 · 2025→2026: 9 → average 16.1
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 16.1 × 2.66 = 42.8. Upper limit 7, lower limit −78.6.

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 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.