La Tijera K-8 Charter School Academy Of Excellence: 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.

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	24,630	2400.0	− 2436	−36	× 63 / 487	−4.7
4	24,632	2429.0	− 2485	−56	× 53 / 487	−6.1
5	24,634	2464.0	− 2528	−64	× 51 / 487	−6.7
6	24,636	2467.4	− 2552	−84.6	× 67 / 487	−11.6
7	24,638	2491.7	− 2567	−75.3	× 126 / 487	−19.5
8	24,640	2473.1	− 2586	−112.9	× 127 / 487	−29.4
Sum, rounded to a whole point						−78

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	22,988	2433.6	− 2436	−2.4	× 48 / 452	−0.3
4	22,989	2452.8	− 2485	−32.2	× 65 / 452	−4.6
5	22,991	2457.7	− 2528	−70.3	× 52 / 452	−8.1
6	22,994	2489.7	− 2552	−62.3	× 55 / 452	−7.6
7	22,996	2493.6	− 2567	−73.4	× 116 / 452	−18.8
8	22,997	2488.7	− 2586	−97.3	× 116 / 452	−25
Sum, rounded to a whole point						−64

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	23,439	2458.3	− 2436	22.3	× 50 / 465	2.4
4	23,441	2468.5	− 2485	−16.5	× 56 / 465	−2
5	23,442	2473.5	− 2528	−54.5	× 58 / 465	−6.8
6	23,444	2483.5	− 2552	−68.5	× 71 / 465	−10.5
7	23,446	2482.3	− 2567	−84.7	× 109 / 465	−19.9
8	23,449	2471.3	− 2586	−114.7	× 121 / 465	−29.8
Sum, rounded to a whole point						−67

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	23,448	2429.1	− 2436	−6.9	× 79 / 454	−1.2
4	23,450	2474.1	− 2485	−10.9	× 53 / 454	−1.3
5	23,452	2474.6	− 2528	−53.4	× 55 / 454	−6.5
6	23,454	2471.8	− 2552	−80.2	× 58 / 454	−10.2
7	23,456	2484.0	− 2567	−83	× 108 / 454	−19.7
8	23,458	2481.6	− 2586	−104.4	× 101 / 454	−23.2
Sum, rounded to a whole point						−62

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	23,624	2389.3	− 2436	−46.7	× 83 / 518	−7.5
4	23,625	2453.0	− 2485	−32	× 76 / 518	−4.7
5	23,626	2475.5	− 2528	−52.5	× 62 / 518	−6.3
6	23,627	2469.7	− 2552	−82.3	× 59 / 518	−9.4
7	23,628	2476.4	− 2567	−90.6	× 129 / 518	−22.6
8	23,629	2475.3	− 2586	−110.7	× 109 / 518	−23.3
Sum, rounded to a whole point						−74

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	23,021	2419.2	− 2436	−16.8	× 63 / 483	−2.2
4	23,022	2411.3	− 2485	−73.7	× 60 / 483	−9.2
5	23,023	2425.1	− 2528	−102.9	× 76 / 483	−16.2
6	23,024	2474.5	− 2552	−77.5	× 77 / 483	−12.4
7	23,025	2498.9	− 2567	−68.1	× 89 / 483	−12.5
8	23,026	2479.9	− 2586	−106.1	× 118 / 483	−25.9
Sum, rounded to a whole point						−78

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	23,559	2448.7	− 2436	12.7	× 70 / 415	2.1
4	23,560	2474.6	− 2485	−10.4	× 55 / 415	−1.4
5	23,561	2440.8	− 2528	−87.2	× 53 / 415	−11.1
6	23,562	2446.5	− 2552	−105.5	× 74 / 415	−18.8
7	23,563	2480.3	− 2567	−86.7	× 85 / 415	−17.8
8	23,564	2492.8	− 2586	−93.2	× 78 / 415	−17.5
Sum, rounded to a whole point						−64

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	23,532	2392.5	− 2436	−43.5	× 58 / 427	−5.9
4	23,533	2425.9	− 2485	−59.1	× 70 / 427	−9.7
5	23,534	2470.1	− 2528	−57.9	× 60 / 427	−8.1
6	23,535	2471.0	− 2552	−81	× 58 / 427	−11
7	23,536	2481.7	− 2567	−85.3	× 91 / 427	−18.2
8	23,537	2486.3	− 2586	−99.7	× 90 / 427	−21
Sum, rounded to a whole point						−74

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	23,384	2418.1	− 2436	−17.9	× 49 / 383	−2.3
4	23,385	2416.0	− 2485	−69	× 53 / 383	−9.5
5	23,386	2441.7	− 2528	−86.3	× 59 / 383	−13.3
6	23,387	2453.7	− 2552	−98.3	× 60 / 383	−15.4
7	23,388	2464.5	− 2567	−102.5	× 67 / 383	−17.9
8	23,389	2493.9	− 2586	−92.1	× 95 / 383	−22.8
Sum, rounded to a whole point						−81

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	23,297	2447.2	− 2436	11.2	× 53 / 377	1.6
4	23,298	2421.4	− 2485	−63.6	× 54 / 377	−9.1
5	23,299	2446.9	− 2528	−81.1	× 66 / 377	−14.2
6	23,300	2486.1	− 2552	−65.9	× 56 / 377	−9.8
7	23,301	2470.7	− 2567	−96.3	× 69 / 377	−17.6
8	23,302	2533.9	− 2586	−52.1	× 79 / 377	−10.9
Sum, rounded to a whole point						−60

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −78, −64, −67, −62, −74, −78, −64, −74, −81, −60 → −70.2
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 14 · 2016→2017: 3 · 2017→2018: 5 · 2018→2019: 12 · 2019→2021: 4 · 2021→2022: 14 · 2022→2023: 10 · 2023→2024: 7 · 2024→2025: 21 → 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 −43.6, lower limit −96.8.

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.