Turtle Bay: math · Schoolio

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 8.

3rd The average 3rd grader meets the grade 3 bar. 2440 vs. 2436.
4th The average 4th grader scores 19 points under the grade 4 bar. 2467 vs. 2485.
5th The average 5th grader scores 25 points under the grade 5 bar. 2503 vs. 2528.
6th The average 6th grader scores just under the grade 4 bar. 2477 vs. 2485. The 6th-grade bar is 2552.
7th The average 7th grader scores just under the grade 5 bar. 2519 vs. 2528. The 7th-grade bar is 2567.
8th The average 8th grader scores 18 points under the grade 8 bar. 2568 vs. 2586.

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	91,484	2463.0	− 2436	27	× 84 / 466	4.9
4	91,485	2474.5	− 2485	−10.5	× 80 / 466	−1.8
5	91,488	2474.6	− 2528	−53.4	× 110 / 466	−12.6
6	91,489	2524.4	− 2552	−27.6	× 74 / 466	−4.4
7	91,492	2498.1	− 2567	−68.9	× 64 / 466	−9.5
8	91,493	2549.9	− 2586	−36.1	× 54 / 466	−4.2
Sum, rounded to a whole point						−28

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	84,958	2468.1	− 2436	32.1	× 105 / 490	6.9
4	84,960	2485.6	− 2485	0.6	× 91 / 490	0.1
5	84,962	2513.3	− 2528	−14.7	× 80 / 490	−2.4
6	84,963	2522.4	− 2552	−29.6	× 84 / 490	−5.1
7	84,965	2528.8	− 2567	−38.2	× 66 / 490	−5.1
8	84,967	2519.1	− 2586	−66.9	× 64 / 490	−8.7
Sum, rounded to a whole point						−14

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,309	2481.4	− 2436	45.4	× 98 / 490	9.1
4	87,312	2479.1	− 2485	−5.9	× 104 / 490	−1.3
5	87,314	2504.2	− 2528	−23.8	× 95 / 490	−4.6
6	87,316	2494.7	− 2552	−57.3	× 65 / 490	−7.6
7	87,317	2535.6	− 2567	−31.4	× 74 / 490	−4.7
8	87,320	2561.0	− 2586	−25	× 54 / 490	−2.8
Sum, rounded to a whole point						−12

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,563	2455.1	− 2436	19.1	× 100 / 530	3.6
4	87,566	2493.2	− 2485	8.2	× 115 / 530	1.8
5	87,567	2481.4	− 2528	−46.6	× 107 / 530	−9.4
6	87,570	2503.7	− 2552	−48.3	× 68 / 530	−6.2
7	87,571	2522.6	− 2567	−44.4	× 66 / 530	−5.5
8	87,574	2558.4	− 2586	−27.6	× 74 / 530	−3.9
Sum, rounded to a whole point						−20

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,202	2447.5	− 2436	11.5	× 111 / 483	2.6
4	88,203	2488.0	− 2485	3	× 93 / 483	0.6
5	88,204	2501.4	− 2528	−26.6	× 116 / 483	−6.4
6	88,205	2482.1	− 2552	−69.9	× 63 / 483	−9.1
7	88,206	2546.4	− 2567	−20.6	× 57 / 483	−2.4
8	88,207	2515.6	− 2586	−70.4	× 43 / 483	−6.3
Sum, rounded to a whole point						−21

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	86,476	2439.8	− 2436	3.8	× 93 / 492	0.7
4	86,477	2468.6	− 2485	−16.4	× 86 / 492	−2.9
5	86,478	2471.5	− 2528	−56.5	× 106 / 492	−12.2
6	86,479	2483.9	− 2552	−68.1	× 61 / 492	−8.4
7	86,480	2532.9	− 2567	−34.1	× 83 / 492	−5.8
8	86,481	2502.8	− 2586	−83.2	× 63 / 492	−10.7
Sum, rounded to a whole point						−39

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,539	2440.0	− 2436	4	× 58 / 444	0.5
4	88,540	2468.9	− 2485	−16.1	× 80 / 444	−2.9
5	88,541	2463.4	− 2528	−64.6	× 84 / 444	−12.2
6	88,542	2466.6	− 2552	−85.4	× 96 / 444	−18.5
7	88,543	2548.0	− 2567	−19	× 51 / 444	−2.2
8	88,544	2505.2	− 2586	−80.8	× 75 / 444	−13.6
Sum, rounded to a whole point						−49

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,444	2421.3	− 2436	−14.7	× 114 / 464	−3.6
4	88,445	2471.4	− 2485	−13.6	× 58 / 464	−1.7
5	88,446	2482.5	− 2528	−45.5	× 83 / 464	−8.1
6	88,447	2474.2	− 2552	−77.8	× 66 / 464	−11.1
7	88,448	2513.7	− 2567	−53.3	× 88 / 464	−10.1
8	88,449	2533.7	− 2586	−52.3	× 55 / 464	−6.2
Sum, rounded to a whole point						−41

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,417	2422.4	− 2436	−13.6	× 72 / 446	−2.2
4	88,418	2482.4	− 2485	−2.6	× 107 / 446	−0.6
5	88,419	2493.6	− 2528	−34.4	× 54 / 446	−4.2
6	88,420	2474.6	− 2552	−77.4	× 69 / 446	−12
7	88,421	2510.1	− 2567	−56.9	× 56 / 446	−7.1
8	88,422	2560.9	− 2586	−25.1	× 88 / 446	−5
Sum, rounded to a whole point						−31

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	88,111	2445.4	− 2436	9.4	× 79 / 409	1.8
4	88,112	2457.4	− 2485	−27.6	× 78 / 409	−5.3
5	88,113	2494.6	− 2528	−33.4	× 104 / 409	−8.5
6	88,114	2469.4	− 2552	−82.6	× 39 / 409	−7.9
7	88,115	2503.6	− 2567	−63.4	× 58 / 409	−9
8	88,116	2563.4	− 2586	−22.6	× 51 / 409	−2.8
Sum, rounded to a whole point						−32

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	87,810	2439.6	− 2436	3.6	× 74 / 395	0.7
4	87,811	2466.5	− 2485	−18.5	× 75 / 395	−3.5
5	87,812	2502.7	− 2528	−25.3	× 86 / 395	−5.5
6	87,813	2476.7	− 2552	−75.3	× 71 / 395	−13.5
7	87,814	2519.4	− 2567	−47.6	× 32 / 395	−3.9
8	87,815	2567.6	− 2586	−18.4	× 57 / 395	−2.7
Sum, rounded to a whole point						−28

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −28, −14, −12, −20, −21, −39, −49, −41, −31, −32, −28 → −28.6
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: 2 · 2017→2018: 8 · 2018→2019: 1 · 2019→2021: 18 · 2021→2022: 10 · 2022→2023: 8 · 2023→2024: 10 · 2024→2025: 1 · 2025→2026: 4 → average 7.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 7.6 × 2.66 = 20.2. Upper limit −8.4, lower limit −48.8.

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.