Lake Canyon 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 meets the grade 3 bar. 2459 vs. 2436.
4th The average 4th grader scores just under the grade 4 bar. 2483 vs. 2485.
5th The average 5th grader scores 36 points under the grade 5 bar. 2492 vs. 2528.
6th The average 6th grader scores 10 points under the grade 6 bar. 2542 vs. 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	60,962	2409.3	− 2436	−26.7	× 65 / 329	−5.3
4	60,964	2441.7	− 2485	−43.3	× 82 / 329	−10.8
5	60,966	2470.3	− 2528	−57.7	× 89 / 329	−15.6
6	60,968	2495.0	− 2552	−57	× 93 / 329	−16.1
Sum, rounded to a whole point						−48

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	56,554	2412.2	− 2436	−23.8	× 82 / 328	−6
4	56,555	2427.2	− 2485	−57.8	× 64 / 328	−11.3
5	56,558	2472.2	− 2528	−55.8	× 86 / 328	−14.6
6	56,560	2505.2	− 2552	−46.8	× 96 / 328	−13.7
Sum, rounded to a whole point						−46

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,199	2446.9	− 2436	10.9	× 69 / 311	2.4
4	58,201	2450.5	− 2485	−34.5	× 86 / 311	−9.5
5	58,203	2471.7	− 2528	−56.3	× 62 / 311	−11.2
6	58,204	2518.9	− 2552	−33.1	× 94 / 311	−10
Sum, rounded to a whole point						−28

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,331	2454.3	− 2436	18.3	× 68 / 297	4.2
4	58,334	2470.7	− 2485	−14.3	× 72 / 297	−3.5
5	58,335	2492.8	− 2528	−35.2	× 88 / 297	−10.4
6	58,338	2510.7	− 2552	−41.3	× 69 / 297	−9.6
Sum, rounded to a whole point						−19

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,577	2448.4	− 2436	12.4	× 85 / 315	3.3
4	58,578	2481.2	− 2485	−3.8	× 66 / 315	−0.8
5	58,579	2510.2	− 2528	−17.8	× 75 / 315	−4.2
6	58,580	2537.6	− 2552	−14.4	× 89 / 315	−4.1
Sum, rounded to a whole point						−6

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,648	2439.2	− 2436	3.2	× 67 / 305	0.7
4	58,649	2453.0	− 2485	−32	× 71 / 305	−7.4
5	58,650	2483.7	− 2528	−44.3	× 85 / 305	−12.3
6	58,651	2501.3	− 2552	−50.7	× 82 / 305	−13.6
Sum, rounded to a whole point						−33

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,608	2429.8	− 2436	−6.2	× 90 / 316	−1.8
4	58,609	2488.5	− 2485	3.5	× 69 / 316	0.8
5	58,610	2481.3	− 2528	−46.7	× 73 / 316	−10.8
6	58,611	2520.6	− 2552	−31.4	× 84 / 316	−8.3
Sum, rounded to a whole point						−20

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,519	2411.1	− 2436	−24.9	× 64 / 301	−5.3
4	58,520	2482.6	− 2485	−2.4	× 94 / 301	−0.7
5	58,521	2515.9	− 2528	−12.1	× 70 / 301	−2.8
6	58,522	2511.3	− 2552	−40.7	× 73 / 301	−9.9
Sum, rounded to a whole point						−19

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,278	2440.8	− 2436	4.8	× 62 / 293	1
4	58,279	2448.9	− 2485	−36.1	× 66 / 293	−8.1
5	58,280	2529.4	− 2528	1.4	× 99 / 293	0.5
6	58,281	2527.4	− 2552	−24.6	× 66 / 293	−5.5
Sum, rounded to a whole point						−12

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	58,203	2458.6	− 2436	22.6	× 69 / 299	5.2
4	58,204	2483.1	− 2485	−1.9	× 64 / 299	−0.4
5	58,205	2491.9	− 2528	−36.1	× 68 / 299	−8.2
6	58,206	2542.4	− 2552	−9.6	× 98 / 299	−3.1
Sum, rounded to a whole point						−7

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −48, −46, −28, −19, −6, −33, −20, −19, −12, −7 → −23.8
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: 18 · 2017→2018: 9 · 2018→2019: 13 · 2019→2022: 27 · 2022→2023: 13 · 2023→2024: 1 · 2024→2025: 7 · 2025→2026: 5 → average 10.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 10.6 × 2.66 = 28.2. Upper limit 4.4, lower limit −52.

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.