Rancho Learning Center (Alternative): 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, 9 of the 31 students who took the math test were English learners.

8th The average 8th grader scores 12 points under the grade 7 bar. 2555 vs. 2567. The 8th-grade bar is 2586.
11th The average 11th grader scores 37 points under the grade 3 bar. 2399 vs. 2436. 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.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	20,788	2461.5	− 2628	−166.5	× 16 / 16	−166.5
Sum, rounded to a whole point						−167

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	20,028	2657.3	− 2567	90.3	× 36 / 53	61.3
11	20,032	2450.5	− 2628	−177.5	× 17 / 53	−56.9
Sum, rounded to a whole point						4

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	20,210	2695.2	− 2586	109.2	× 33 / 46	78.3
11	20,211	2477.4	− 2628	−150.6	× 13 / 46	−42.6
Sum, rounded to a whole point						36

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	19,698	2551.7	− 2628	−76.3	× 15 / 15	−76.3
Sum, rounded to a whole point						−76

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	20,237	2547.6	− 2485	62.6	× 15 / 62	15.1
5	20,238	2520.0	− 2528	−8	× 12 / 62	−1.5
8	20,241	2634.7	− 2586	48.7	× 22 / 62	17.3
11	20,242	2454.7	− 2628	−173.3	× 13 / 62	−36.3
Sum, rounded to a whole point						−5

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	20,211	2442.5	− 2628	−185.5	× 14 / 14	−185.5
Sum, rounded to a whole point						−186

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	20,148	2519.2	− 2586	−66.8	× 20 / 37	−36.1
11	20,149	2428.7	− 2628	−199.3	× 17 / 37	−91.6
Sum, rounded to a whole point						−128

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	20,084	2571.3	− 2567	4.3	× 12 / 35	1.5
8	20,085	2525.7	− 2586	−60.3	× 12 / 35	−20.7
11	20,086	2437.1	− 2628	−190.9	× 11 / 35	−60
Sum, rounded to a whole point						−79

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	20,153	2555.0	− 2586	−31	× 15 / 31	−15
11	20,154	2399.0	− 2628	−229	× 16 / 31	−118.2
Sum, rounded to a whole point						−133

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −167, 4, 36, −76, −5, −186, −128, −79, −133 → −81.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2018: 171 · 2018→2019: 32 · 2019→2021: 112 · 2021→2022: 71 · 2022→2023: 181 · 2023→2024: 58 · 2024→2025: 49 · 2025→2026: 54 → average 91
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 91 × 2.66 = 242.1. Upper limit 160.5, lower limit −323.7.

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 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.