Ericson 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 26 points under the grade 3 bar. 2410 vs. 2436.
4th The average 4th grader scores 41 points under the grade 4 bar. 2445 vs. 2485.
5th The average 5th grader scores just under the grade 3 bar. 2434 vs. 2436. The 5th-grade bar is 2528.
6th The average 6th grader scores 28 points under the grade 4 bar. 2457 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 70 students 14 points under the grade 3 bar. 4th 93 students 29 points under the grade 4 bar. 5th 69 students 45 points under the grade 4 bar. 6th 82 students 17 points under the grade 4 bar.

English learners

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

Grade bars 3rd 14 students 89 points under the grade 3 bar. 4th 16 students 56 points under the grade 3 bar. 5th 20 students 23 points under the grade 3 bar. 6th 12 students 57 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	10,646	2369.8	− 2436	−66.2	× 118 / 408	−19.1
4	10,649	2407.5	− 2485	−77.5	× 111 / 408	−21.1
5	10,650	2431.9	− 2528	−96.1	× 96 / 408	−22.6
6	10,653	2428.0	− 2552	−124	× 83 / 408	−25.2
Sum, rounded to a whole point						−88

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,664	2397.3	− 2436	−38.7	× 95 / 368	−10
4	9,666	2399.9	− 2485	−85.1	× 85 / 368	−19.7
5	9,669	2442.1	− 2528	−85.9	× 98 / 368	−22.9
6	9,670	2458.2	− 2552	−93.8	× 90 / 368	−22.9
Sum, rounded to a whole point						−75

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	9,992	2431.6	− 2436	−4.4	× 105 / 367	−1.3
4	9,995	2448.4	− 2485	−36.6	× 89 / 367	−8.9
5	9,996	2443.6	− 2528	−84.4	× 87 / 367	−20
6	9,998	2477.5	− 2552	−74.5	× 86 / 367	−17.5
Sum, rounded to a whole point						−48

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,010	2435.4	− 2436	−0.6	× 82 / 349	−0.1
4	10,013	2477.6	− 2485	−7.4	× 99 / 349	−2.1
5	10,014	2437.3	− 2528	−90.7	× 85 / 349	−22.1
6	10,017	2470.3	− 2552	−81.7	× 83 / 349	−19.4
Sum, rounded to a whole point						−44

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,091	2434.5	− 2436	−1.5	× 106 / 365	−0.4
4	10,092	2481.5	− 2485	−3.5	× 74 / 365	−0.7
5	10,093	2468.9	− 2528	−59.1	× 97 / 365	−15.7
6	10,094	2473.9	− 2552	−78.1	× 88 / 365	−18.8
Sum, rounded to a whole point						−36

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,084	2391.2	− 2436	−44.8	× 97 / 384	−11.3
4	10,085	2420.3	− 2485	−64.7	× 102 / 384	−17.2
5	10,086	2424.3	− 2528	−103.7	× 95 / 384	−25.7
6	10,087	2446.5	− 2552	−105.5	× 90 / 384	−24.7
Sum, rounded to a whole point						−79

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,072	2400.4	− 2436	−35.6	× 106 / 410	−9.2
4	10,073	2412.3	− 2485	−72.7	× 100 / 410	−17.7
5	10,074	2436.1	− 2528	−91.9	× 99 / 410	−22.2
6	10,075	2441.4	− 2552	−110.6	× 105 / 410	−28.3
Sum, rounded to a whole point						−77

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,038	2418.4	− 2436	−17.6	× 89 / 374	−4.2
4	10,039	2439.6	− 2485	−45.4	× 103 / 374	−12.5
5	10,040	2429.2	− 2528	−98.8	× 92 / 374	−24.3
6	10,041	2475.7	− 2552	−76.3	× 90 / 374	−18.4
Sum, rounded to a whole point						−59

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,015	2409.5	− 2436	−26.5	× 106 / 380	−7.4
4	10,016	2439.7	− 2485	−45.3	× 89 / 380	−10.6
5	10,017	2445.6	− 2528	−82.4	× 97 / 380	−21
6	10,018	2442.3	− 2552	−109.7	× 88 / 380	−25.4
Sum, rounded to a whole point						−64

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	10,047	2409.9	− 2436	−26.1	× 84 / 376	−5.8
4	10,048	2444.5	− 2485	−40.5	× 109 / 376	−11.7
5	10,049	2433.7	− 2528	−94.3	× 89 / 376	−22.3
6	10,050	2456.8	− 2552	−95.2	× 94 / 376	−23.8
Sum, rounded to a whole point						−64

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −88, −75, −48, −44, −36, −79, −77, −59, −64, −64 → −63.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 13 · 2016→2017: 27 · 2017→2018: 4 · 2018→2019: 8 · 2019→2022: 43 · 2022→2023: 2 · 2023→2024: 18 · 2024→2025: 5 · 2025→2026: 0 → average 13.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.3 × 2.66 = 35.4. Upper limit −28, lower limit −98.8.

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.