Annandale 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 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 4.

4th The average 4th grader scores 53 points under the grade 3 bar. 2384 vs. 2436. The 4th-grade bar is 2485.

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	29,346	2366.2	− 2436	−69.8	× 49 / 164	−20.9
4	29,347	2413.7	− 2485	−71.3	× 43 / 164	−18.7
5	29,350	2416.9	− 2528	−111.1	× 40 / 164	−27.1
6	29,351	2438.5	− 2552	−113.5	× 32 / 164	−22.1
Sum, rounded to a whole point						−89

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	27,567	2382.9	− 2436	−53.1	× 33 / 143	−12.3
4	27,569	2404.4	− 2485	−80.6	× 46 / 143	−25.9
5	27,571	2416.5	− 2528	−111.5	× 38 / 143	−29.6
6	27,574	2477.5	− 2552	−74.5	× 26 / 143	−13.5
Sum, rounded to a whole point						−81

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	28,141	2393.4	− 2436	−42.6	× 31 / 98	−13.5
4	28,143	2419.1	− 2485	−65.9	× 28 / 98	−18.8
5	28,144	2428.2	− 2528	−99.8	× 39 / 98	−39.7
Sum, rounded to a whole point						−72

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	28,191	2391.3	− 2436	−44.7	× 29 / 80	−16.2
4	28,193	2401.3	− 2485	−83.7	× 27 / 80	−28.2
5	28,195	2423.6	− 2528	−104.4	× 24 / 80	−31.3
Sum, rounded to a whole point						−76

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	28,371	2356.1	− 2436	−79.9	× 26 / 71	−29.3
4	28,372	2439.5	− 2485	−45.5	× 23 / 71	−14.7
5	28,373	2460.1	− 2528	−67.9	× 22 / 71	−21
Sum, rounded to a whole point						−65

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	28,406	2369.4	− 2436	−66.6	× 15 / 51	−19.6
4	28,407	2419.2	− 2485	−65.8	× 18 / 51	−23.2
5	28,408	2469.2	− 2528	−58.8	× 18 / 51	−20.8
Sum, rounded to a whole point						−64

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	28,467	2379.5	− 2436	−56.5	× 13 / 48	−15.3
4	28,468	2379.3	− 2485	−105.7	× 14 / 48	−30.8
5	28,469	2440.0	− 2528	−88	× 21 / 48	−38.5
Sum, rounded to a whole point						−85

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	28,333	2414.1	− 2436	−21.9	× 11 / 38	−6.3
4	28,334	2409.4	− 2485	−75.6	× 12 / 38	−23.9
5	28,335	2422.9	− 2528	−105.1	× 15 / 38	−41.5
Sum, rounded to a whole point						−72

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	28,196	2374.3	− 2436	−61.7	× 13 / 26	−30.9
5	28,198	2424.0	− 2528	−104	× 13 / 26	−52
Sum, rounded to a whole point						−83

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
4	28,191	2383.5	− 2485	−101.5	× 12 / 12	−101.5
Sum, rounded to a whole point						−102

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −89, −81, −72, −76, −65, −64, −85, −72, −83, −102 → −78.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 8 · 2016→2017: 9 · 2017→2018: 4 · 2018→2019: 11 · 2019→2022: 1 · 2022→2023: 21 · 2023→2024: 13 · 2024→2025: 11 · 2025→2026: 19 → average 10.8
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.8 × 2.66 = 28.7. Upper limit −50.2, lower limit −107.6.

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