Mark West 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 meets the grade 3 bar. 2448 vs. 2436.
4th The average 4th grader scores 40 points under the grade 4 bar. 2445 vs. 2485.
5th The average 5th grader scores 11 points under the grade 4 bar. 2475 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores 22 points under the grade 5 bar. 2506 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 4th 53 students 27 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 4th 12 students 47 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	94,457	2420.2	− 2436	−15.8	× 53 / 211	−4
4	94,459	2476.9	− 2485	−8.1	× 54 / 211	−2.1
5	94,460	2480.1	− 2528	−47.9	× 54 / 211	−12.3
6	94,463	2541.7	− 2552	−10.3	× 50 / 211	−2.4
Sum, rounded to a whole point						−21

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,704	2448.5	− 2436	12.5	× 55 / 228	3
4	87,705	2469.1	− 2485	−15.9	× 61 / 228	−4.3
5	87,708	2461.7	− 2528	−66.3	× 57 / 228	−16.6
6	87,710	2530.8	− 2552	−21.2	× 55 / 228	−5.1
Sum, rounded to a whole point						−23

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,227	2446.7	− 2436	10.7	× 46 / 217	2.3
4	90,228	2472.7	− 2485	−12.3	× 59 / 217	−3.3
5	90,231	2472.5	− 2528	−55.5	× 57 / 217	−14.6
6	90,232	2510.2	− 2552	−41.8	× 55 / 217	−10.6
Sum, rounded to a whole point						−26

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,432	2450.2	− 2436	14.2	× 57 / 226	3.6
4	90,433	2475.6	− 2485	−9.4	× 51 / 226	−2.1
5	90,436	2475.3	− 2528	−52.7	× 58 / 226	−13.5
6	90,437	2509.8	− 2552	−42.2	× 60 / 226	−11.2
Sum, rounded to a whole point						−23

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,052	2440.7	− 2436	4.7	× 64 / 232	1.3
4	91,053	2491.3	− 2485	6.3	× 57 / 232	1.5
5	91,054	2479.8	− 2528	−48.2	× 53 / 232	−11
6	91,055	2543.1	− 2552	−8.9	× 58 / 232	−2.2
Sum, rounded to a whole point						−10

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,118	2414.2	− 2436	−21.8	× 57 / 199	−6.2
4	89,119	2444.0	− 2485	−41	× 47 / 199	−9.7
5	89,120	2456.2	− 2528	−71.8	× 51 / 199	−18.4
6	89,121	2507.5	− 2552	−44.5	× 44 / 199	−9.8
Sum, rounded to a whole point						−44

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,306	2422.5	− 2436	−13.5	× 54 / 211	−3.5
4	91,307	2482.5	− 2485	−2.5	× 51 / 211	−0.6
5	91,308	2479.4	− 2528	−48.6	× 52 / 211	−12
6	91,309	2502.3	− 2552	−49.7	× 54 / 211	−12.7
Sum, rounded to a whole point						−29

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,202	2428.4	− 2436	−7.6	× 52 / 208	−1.9
4	91,203	2470.6	− 2485	−14.4	× 59 / 208	−4.1
5	91,204	2501.4	− 2528	−26.6	× 54 / 208	−6.9
6	91,205	2535.6	− 2552	−16.4	× 43 / 208	−3.4
Sum, rounded to a whole point						−16

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,147	2435.3	− 2436	−0.7	× 58 / 218	−0.2
4	91,148	2479.8	− 2485	−5.2	× 50 / 218	−1.2
5	91,149	2482.7	− 2528	−45.3	× 59 / 218	−12.3
6	91,150	2542.5	− 2552	−9.5	× 51 / 218	−2.2
Sum, rounded to a whole point						−16

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,847	2423.7	− 2436	−12.3	× 61 / 215	−3.5
4	90,848	2465.8	− 2485	−19.2	× 56 / 215	−5
5	90,849	2486.0	− 2528	−42	× 52 / 215	−10.2
6	90,850	2526.8	− 2552	−25.2	× 46 / 215	−5.4
Sum, rounded to a whole point						−24

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	90,502	2447.8	− 2436	11.8	× 52 / 220	2.8
4	90,503	2445.0	− 2485	−40	× 65 / 220	−11.8
5	90,504	2474.5	− 2528	−53.5	× 59 / 220	−14.3
6	90,505	2505.9	− 2552	−46.1	× 44 / 220	−9.2
Sum, rounded to a whole point						−33

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −21, −23, −26, −23, −10, −44, −29, −16, −16, −24, −33 → −24.1
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: 3 · 2017→2018: 3 · 2018→2019: 13 · 2019→2021: 34 · 2021→2022: 15 · 2022→2023: 13 · 2023→2024: 0 · 2024→2025: 8 · 2025→2026: 9 → average 10
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10 × 2.66 = 26.6. Upper limit 2.5, lower limit −50.7.

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.