Geyserville Elementary: 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 4 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 5.

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, 12 of the 30 students who took the math test were English learners.

4th The average 4th grader scores 25 points under the grade 4 bar. 2460 vs. 2485.
5th The average 5th grader scores 15 points under the grade 4 bar. 2470 vs. 2485. The 5th-grade bar is 2528.

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
3	94,228	2472.4	− 2436	36.4	× 19 / 57	12.1
4	94,231	2444.7	− 2485	−40.3	× 24 / 57	−17
5	94,232	2499.5	− 2528	−28.5	× 14 / 57	−7
Sum, rounded to a whole point						−12

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,483	2461.7	− 2436	25.7	× 23 / 63	9.4
4	87,486	2502.4	− 2485	17.4	× 17 / 63	4.7
5	87,487	2432.0	− 2528	−96	× 23 / 63	−35
Sum, rounded to a whole point						−21

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,981	2451.2	− 2436	15.2	× 17 / 57	4.5
4	89,983	2484.1	− 2485	−0.9	× 19 / 57	−0.3
5	89,985	2511.1	− 2528	−16.9	× 21 / 57	−6.2
Sum, rounded to a whole point						−2

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,181	2491.2	− 2436	55.2	× 19 / 55	19.1
4	90,184	2468.5	− 2485	−16.5	× 17 / 55	−5.1
5	90,186	2472.2	− 2528	−55.8	× 19 / 55	−19.3
Sum, rounded to a whole point						−5

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,791	2470.7	− 2436	34.7	× 18 / 55	11.4
4	90,792	2483.6	− 2485	−1.4	× 19 / 55	−0.5
5	90,793	2460.4	− 2528	−67.6	× 18 / 55	−22.1
Sum, rounded to a whole point						−11

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,033	2450.3	− 2436	14.3	× 13 / 37	5
4	91,034	2440.8	− 2485	−44.2	× 11 / 37	−13.1
5	91,035	2482.3	− 2528	−45.7	× 13 / 37	−16.1
Sum, rounded to a whole point						−24

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,923	2448.0	− 2436	12	× 17 / 44	4.6
4	90,924	2490.8	− 2485	5.8	× 13 / 44	1.7
5	90,925	2418.1	− 2528	−109.9	× 14 / 44	−35
Sum, rounded to a whole point						−29

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,872	2452.5	− 2436	16.5	× 18 / 52	5.7
4	90,873	2446.6	− 2485	−38.4	× 19 / 52	−14
5	90,874	2469.1	− 2528	−58.9	× 15 / 52	−17
Sum, rounded to a whole point						−25

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,566	2454.5	− 2436	18.5	× 17 / 51	6.2
4	90,567	2392.9	− 2485	−92.1	× 15 / 51	−27.1
5	90,568	2409.2	− 2528	−118.8	× 19 / 51	−44.3
Sum, rounded to a whole point						−65

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	90,222	2459.7	− 2485	−25.3	× 15 / 30	−12.7
5	90,223	2470.4	− 2528	−57.6	× 15 / 30	−28.8
Sum, rounded to a whole point						−41

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −12, −21, −2, −5, −11, −24, −29, −25, −65, −41 → −23.5
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 9 · 2016→2017: 19 · 2017→2018: 3 · 2018→2019: 6 · 2019→2022: 13 · 2022→2023: 5 · 2023→2024: 4 · 2024→2025: 40 · 2025→2026: 24 → average 13.7
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.7 × 2.66 = 36.4. Upper limit 12.9, lower limit −59.9.

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