Golden Gate Community: 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 3 bar

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.

11th The average 11th grader scores 63 points under the grade 3 bar. 2373 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
7	5,809	2375.7	− 2567	−191.3	× 11 / 50	−42.1
8	5,810	2391.4	− 2586	−194.6	× 21 / 50	−81.7
11	5,813	2400.6	− 2628	−227.4	× 18 / 50	−81.9
Sum, rounded to a whole point						−206

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	5,282	2387.8	− 2586	−198.2	× 16 / 33	−96.1
11	5,285	2407.1	− 2628	−220.9	× 17 / 33	−113.8
Sum, rounded to a whole point						−210

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	5,396	2354.8	− 2586	−231.2	× 19 / 40	−109.8
11	5,399	2374.8	− 2628	−253.2	× 21 / 40	−132.9
Sum, rounded to a whole point						−243

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	5,392	2426.9	− 2586	−159.1	× 14 / 43	−51.8
11	5,395	2398.3	− 2628	−229.7	× 29 / 43	−154.9
Sum, rounded to a whole point						−207

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
8	5,447	2391.9	− 2586	−194.1	× 17 / 55	−60
11	5,448	2403.4	− 2628	−224.6	× 38 / 55	−155.2
Sum, rounded to a whole point						−215

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	5,222	2428.8	− 2628	−199.2	× 11 / 11	−199.2
Sum, rounded to a whole point						−199

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	5,184	2410.3	− 2628	−217.7	× 19 / 19	−217.7
Sum, rounded to a whole point						−218

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	5,188	2372.7	− 2628	−255.3	× 14 / 14	−255.3
Sum, rounded to a whole point						−255

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −206, −210, −243, −207, −215, −199, −218, −255 → −219.1
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 4 · 2016→2017: 33 · 2017→2018: 36 · 2018→2019: 8 · 2019→2024: 16 · 2024→2025: 19 · 2025→2026: 37 → average 21.9
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 21.9 × 2.66 = 58.3. Upper limit −160.8, lower limit −277.4.

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.