Shirley Lane 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 52 points under the grade 3 bar. 2385 vs. 2436.
4th The average 4th grader scores just under the grade 3 bar. 2431 vs. 2436. The 4th-grade bar is 2485.
5th The average 5th grader scores 34 points under the grade 4 bar. 2451 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores just under the grade 5 bar. 2524 vs. 2528. 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 64 students 40 points under the grade 3 bar. 4th 66 students 35 points under the grade 4 bar. 5th 61 students 25 points under the grade 4 bar. 6th 74 students 10 points under the grade 6 bar.

English learners

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

Grade bars 3rd 18 students 94 points under the grade 3 bar. 4th 26 students 54 points under the grade 3 bar. 5th 14 students 22 points under the grade 3 bar. 6th 23 students 18 points under the grade 4 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	16,831	2372.5	− 2436	−63.5	× 84 / 373	−14.3
4	16,834	2405.6	− 2485	−79.4	× 96 / 373	−20.4
5	16,835	2422.1	− 2528	−105.9	× 100 / 373	−28.4
6	16,838	2483.2	− 2552	−68.8	× 93 / 373	−17.2
Sum, rounded to a whole point						−80

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	15,846	2373.7	− 2436	−62.3	× 94 / 396	−14.8
4	15,849	2416.2	− 2485	−68.8	× 91 / 396	−15.8
5	15,851	2442.8	− 2528	−85.2	× 101 / 396	−21.7
6	15,853	2478.0	− 2552	−74	× 110 / 396	−20.6
Sum, rounded to a whole point						−73

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,167	2368.3	− 2436	−67.7	× 86 / 385	−15.1
4	16,170	2435.2	− 2485	−49.8	× 95 / 385	−12.3
5	16,172	2442.3	− 2528	−85.7	× 96 / 385	−21.4
6	16,173	2475.3	− 2552	−76.7	× 108 / 385	−21.5
Sum, rounded to a whole point						−70

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,187	2381.7	− 2436	−54.3	× 78 / 359	−11.8
4	16,188	2432.7	− 2485	−52.3	× 91 / 359	−13.3
5	16,191	2453.8	− 2528	−74.2	× 97 / 359	−20
6	16,192	2472.8	− 2552	−79.2	× 93 / 359	−20.5
Sum, rounded to a whole point						−66

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,317	2399.1	− 2436	−36.9	× 100 / 364	−10.1
4	16,318	2466.5	− 2485	−18.5	× 75 / 364	−3.8
5	16,319	2449.1	− 2528	−78.9	× 90 / 364	−19.5
6	16,320	2489.6	− 2552	−62.4	× 99 / 364	−17
Sum, rounded to a whole point						−50

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,359	2378.8	− 2436	−57.2	× 94 / 387	−13.9
4	16,360	2412.4	− 2485	−72.6	× 95 / 387	−17.8
5	16,361	2431.7	− 2528	−96.3	× 95 / 387	−23.6
6	16,362	2487.7	− 2552	−64.3	× 103 / 387	−17.1
Sum, rounded to a whole point						−72

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,297	2391.1	− 2436	−44.9	× 98 / 366	−12
4	16,298	2445.9	− 2485	−39.1	× 95 / 366	−10.1
5	16,299	2449.3	− 2528	−78.7	× 88 / 366	−18.9
6	16,300	2480.0	− 2552	−72	× 85 / 366	−16.7
Sum, rounded to a whole point						−58

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,242	2380.7	− 2436	−55.3	× 70 / 345	−11.2
4	16,243	2451.2	− 2485	−33.8	× 99 / 345	−9.7
5	16,244	2460.1	− 2528	−67.9	× 89 / 345	−17.5
6	16,245	2495.6	− 2552	−56.4	× 87 / 345	−14.2
Sum, rounded to a whole point						−53

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,229	2389.6	− 2436	−46.4	× 85 / 340	−11.6
4	16,230	2450.5	− 2485	−34.5	× 71 / 340	−7.2
5	16,231	2465.1	− 2528	−62.9	× 98 / 340	−18.1
6	16,232	2518.1	− 2552	−33.9	× 86 / 340	−8.6
Sum, rounded to a whole point						−46

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	16,244	2384.5	− 2436	−51.5	× 82 / 346	−12.2
4	16,245	2430.6	− 2485	−54.4	× 92 / 346	−14.5
5	16,246	2451.2	− 2528	−76.8	× 75 / 346	−16.6
6	16,247	2524.0	− 2552	−28	× 97 / 346	−7.8
Sum, rounded to a whole point						−51

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −80, −73, −70, −66, −50, −72, −58, −53, −46, −51 → −61.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 3 · 2017→2018: 4 · 2018→2019: 16 · 2019→2022: 22 · 2022→2023: 14 · 2023→2024: 5 · 2024→2025: 7 · 2025→2026: 5 → average 9.2
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.2 × 2.66 = 24.5. Upper limit −37.4, lower limit −86.4.

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.