Weldon 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 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 6.

3rd The average 3rd grader scores 16 points under the grade 3 bar. 2420 vs. 2436.
4th The average 4th grader scores just under the grade 4 bar. 2477 vs. 2485.
5th The average 5th grader scores 15 points under the grade 5 bar. 2513 vs. 2528.
6th The average 6th grader scores 37 points under the grade 5 bar. 2491 vs. 2528. The 6th-grade bar is 2552.

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	9,950	2450.5	− 2436	14.5	× 87 / 359	3.5
4	9,953	2451.3	− 2485	−33.7	× 91 / 359	−8.5
5	9,954	2458.1	− 2528	−69.9	× 88 / 359	−17.1
6	9,957	2524.0	− 2552	−28	× 93 / 359	−7.3
Sum, rounded to a whole point						−29

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,003	2445.1	− 2436	9.1	× 80 / 355	2.1
4	9,005	2465.3	− 2485	−19.7	× 92 / 355	−5.1
5	9,007	2459.8	− 2528	−68.2	× 92 / 355	−17.7
6	9,009	2511.3	− 2552	−40.7	× 91 / 355	−10.4
Sum, rounded to a whole point						−31

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,311	2448.6	− 2436	12.6	× 95 / 354	3.4
4	9,312	2474.3	− 2485	−10.7	× 85 / 354	−2.6
5	9,314	2509.0	− 2528	−19	× 87 / 354	−4.7
6	9,317	2531.5	− 2552	−20.5	× 87 / 354	−5
Sum, rounded to a whole point						−9

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,332	2419.6	− 2436	−16.4	× 79 / 362	−3.6
4	9,335	2465.7	− 2485	−19.3	× 100 / 362	−5.3
5	9,336	2464.2	− 2528	−63.8	× 81 / 362	−14.3
6	9,339	2561.9	− 2552	9.9	× 102 / 362	2.8
Sum, rounded to a whole point						−20

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,409	2450.2	− 2436	14.2	× 85 / 343	3.5
4	9,410	2468.6	− 2485	−16.4	× 80 / 343	−3.8
5	9,411	2487.8	− 2528	−40.2	× 97 / 343	−11.4
6	9,412	2530.9	− 2552	−21.1	× 81 / 343	−5
Sum, rounded to a whole point						−17

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,378	2400.6	− 2436	−35.4	× 86 / 306	−9.9
4	9,379	2413.4	− 2485	−71.6	× 78 / 306	−18.3
5	9,380	2463.9	− 2528	−64.1	× 74 / 306	−15.5
6	9,381	2494.2	− 2552	−57.8	× 68 / 306	−12.8
Sum, rounded to a whole point						−57

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,354	2383.4	− 2436	−52.6	× 79 / 314	−13.2
4	9,355	2426.7	− 2485	−58.3	× 82 / 314	−15.2
5	9,356	2438.8	− 2528	−89.2	× 83 / 314	−23.6
6	9,357	2503.4	− 2552	−48.6	× 70 / 314	−10.8
Sum, rounded to a whole point						−63

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,310	2421.6	− 2436	−14.4	× 54 / 279	−2.8
4	9,311	2413.8	− 2485	−71.2	× 73 / 279	−18.6
5	9,312	2468.6	− 2528	−59.4	× 76 / 279	−16.2
6	9,313	2484.0	− 2552	−68	× 76 / 279	−18.5
Sum, rounded to a whole point						−56

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,291	2441.0	− 2436	5	× 66 / 272	1.2
4	9,292	2494.3	− 2485	9.3	× 62 / 272	2.1
5	9,293	2449.1	− 2528	−78.9	× 66 / 272	−19.1
6	9,294	2500.1	− 2552	−51.9	× 78 / 272	−14.9
Sum, rounded to a whole point						−31

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,309	2420.0	− 2436	−16	× 67 / 267	−4
4	9,310	2477.2	− 2485	−7.8	× 73 / 267	−2.1
5	9,311	2512.9	− 2528	−15.1	× 65 / 267	−3.7
6	9,312	2491.0	− 2552	−61	× 62 / 267	−14.2
Sum, rounded to a whole point						−24

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −29, −31, −9, −20, −17, −57, −63, −56, −31, −24 → −33.7
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 2 · 2016→2017: 22 · 2017→2018: 11 · 2018→2019: 3 · 2019→2022: 40 · 2022→2023: 6 · 2023→2024: 7 · 2024→2025: 25 · 2025→2026: 7 → 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 2.7, lower limit −70.1.

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.