Del Mar 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.

All students

3rd The average 3rd grader scores 66 points under the grade 3 bar. 2370 vs. 2436.
4th The average 4th grader scores 56 points under the grade 3 bar. 2380 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores 10 points under the grade 3 bar. 2426 vs. 2436. The 5th-grade bar is 2528.
6th The average 6th grader scores just under the grade 4 bar. 2479 vs. 2485. The 6th-grade bar is 2552.

Students fluent in English

Math with English out of the way. Includes students who have only ever spoken English.

Grade bars 3rd 52 students 59 points under the grade 3 bar. 5th 68 students Just under the grade 3 bar.

English learners

Students leave this group as they become fluent, so its average stays low even where they learn well.

Grade bars 3rd 13 students 96 points under the grade 3 bar. 5th 15 students 45 points under the grade 3 bar.

the group's average that grade's own bar the distance between

2026 results. "Meets standard" is the state's mark for being on track for that grade. The state leaves out any group of ten students or fewer, so a grade may be missing from the charts.

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	10,627	2364.6	− 2436	−71.4	× 97 / 313	−22.1
4	10,629	2386.5	− 2485	−98.5	× 85 / 313	−26.7
5	10,630	2405.2	− 2528	−122.8	× 64 / 313	−25.1
6	10,633	2442.4	− 2552	−109.6	× 67 / 313	−23.5
Sum, rounded to a whole point						−97

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,644	2398.0	− 2436	−38	× 68 / 305	−8.5
4	9,646	2408.0	− 2485	−77	× 92 / 305	−23.2
5	9,649	2444.0	− 2528	−84	× 88 / 305	−24.2
6	9,650	2432.7	− 2552	−119.3	× 57 / 305	−22.3
Sum, rounded to a whole point						−78

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,972	2391.2	− 2436	−44.8	× 85 / 314	−12.1
4	9,974	2427.9	− 2485	−57.1	× 68 / 314	−12.4
5	9,977	2476.7	− 2528	−51.3	× 80 / 314	−13.1
6	9,979	2459.4	− 2552	−92.6	× 81 / 314	−23.9
Sum, rounded to a whole point						−61

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,991	2392.9	− 2436	−43.1	× 82 / 299	−11.8
4	9,993	2435.1	− 2485	−49.9	× 81 / 299	−13.5
5	9,995	2470.9	− 2528	−57.1	× 66 / 299	−12.6
6	9,997	2486.8	− 2552	−65.2	× 70 / 299	−15.3
Sum, rounded to a whole point						−53

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,071	2393.3	− 2436	−42.7	× 74 / 303	−10.4
4	10,072	2453.6	− 2485	−31.4	× 78 / 303	−8.1
5	10,073	2468.8	− 2528	−59.2	× 89 / 303	−17.4
6	10,074	2492.3	− 2552	−59.7	× 62 / 303	−12.2
Sum, rounded to a whole point						−48

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,064	2362.7	− 2436	−73.3	× 77 / 277	−20.4
4	10,065	2403.4	− 2485	−81.6	× 76 / 277	−22.4
5	10,066	2420.2	− 2528	−107.8	× 65 / 277	−25.3
6	10,067	2435.8	− 2552	−116.2	× 59 / 277	−24.8
Sum, rounded to a whole point						−93

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,052	2365.9	− 2436	−70.1	× 69 / 272	−17.8
4	10,053	2399.5	− 2485	−85.5	× 75 / 272	−23.6
5	10,054	2418.8	− 2528	−109.2	× 74 / 272	−29.7
6	10,055	2466.5	− 2552	−85.5	× 54 / 272	−17
Sum, rounded to a whole point						−88

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,018	2369.9	− 2436	−66.1	× 82 / 277	−19.6
4	10,019	2411.6	− 2485	−73.4	× 59 / 277	−15.6
5	10,020	2415.9	− 2528	−112.1	× 70 / 277	−28.3
6	10,021	2471.8	− 2552	−80.2	× 66 / 277	−19.1
Sum, rounded to a whole point						−83

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,995	2363.4	− 2436	−72.6	× 38 / 241	−11.4
4	9,996	2411.1	− 2485	−73.9	× 76 / 241	−23.3
5	9,997	2435.9	− 2528	−92.1	× 59 / 241	−22.5
6	9,998	2450.4	− 2552	−101.6	× 68 / 241	−28.7
Sum, rounded to a whole point						−86

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,027	2369.6	− 2436	−66.4	× 65 / 247	−17.5
4	10,028	2380.2	− 2485	−104.8	× 47 / 247	−19.9
5	10,029	2426.0	− 2528	−102	× 83 / 247	−34.3
6	10,030	2478.8	− 2552	−73.2	× 52 / 247	−15.4
Sum, rounded to a whole point						−87

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −97, −78, −61, −53, −48, −93, −88, −83, −86, −87 → −77.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 19 · 2016→2017: 17 · 2017→2018: 8 · 2018→2019: 5 · 2019→2022: 45 · 2022→2023: 5 · 2023→2024: 5 · 2024→2025: 3 · 2025→2026: 1 → average 12
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 12 × 2.66 = 31.9. Upper limit −45.5, lower limit −109.3.

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.