Snowline Academy: 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 4 bar

The state's math test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 11.

6th The average 6th grader scores 48 points under the grade 4 bar. 2437 vs. 2485. The 6th-grade bar is 2552.
7th The average 7th grader scores 35 points under the grade 4 bar. 2450 vs. 2485. The 7th-grade bar is 2567.
8th The average 8th grader scores just under the grade 4 bar. 2478 vs. 2485. The 8th-grade bar is 2586.
11th The average 11th grader scores just under the grade 4 bar. 2479 vs. 2485. The 11th-grade bar is 2628.

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
4	69,070	2400.0	− 2485	−85	× 11 / 11	−85
Sum, rounded to a whole point						−85

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	65,819	2596.5	− 2628	−31.5	× 12 / 12	−31.5
Sum, rounded to a whole point						−32

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	65,900	2545.0	− 2628	−83	× 18 / 18	−83
Sum, rounded to a whole point						−83

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	66,352	2353.2	− 2436	−82.8	× 17 / 202	−7
4	66,353	2402.5	− 2485	−82.5	× 19 / 202	−7.8
5	66,354	2419.8	− 2528	−108.2	× 18 / 202	−9.6
6	66,355	2435.3	− 2552	−116.7	× 27 / 202	−15.6
7	66,356	2451.2	− 2567	−115.8	× 43 / 202	−24.7
8	66,357	2442.1	− 2586	−143.9	× 36 / 202	−25.6
11	66,358	2489.2	− 2628	−138.8	× 42 / 202	−28.9
Sum, rounded to a whole point						−119

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	66,352	2383.1	− 2436	−52.9	× 12 / 105	−6
6	66,355	2437.8	− 2552	−114.2	× 13 / 105	−14.1
7	66,356	2487.7	− 2567	−79.3	× 23 / 105	−17.4
8	66,357	2478.2	− 2586	−107.8	× 27 / 105	−27.7
11	66,358	2495.3	− 2628	−132.7	× 30 / 105	−37.9
Sum, rounded to a whole point						−103

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
7	66,334	2464.3	− 2567	−102.7	× 16 / 49	−33.5
8	66,335	2521.6	− 2586	−64.4	× 17 / 49	−22.3
11	66,336	2498.3	− 2628	−129.7	× 16 / 49	−42.4
Sum, rounded to a whole point						−98

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	66,089	2466.2	− 2552	−85.8	× 13 / 39	−28.6
8	66,091	2500.7	− 2586	−85.3	× 15 / 39	−32.8
11	66,092	2507.5	− 2628	−120.5	× 11 / 39	−34
Sum, rounded to a whole point						−95

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	66,061	2437.0	− 2552	−115	× 12 / 85	−16.2
7	66,062	2449.7	− 2567	−117.3	× 23 / 85	−31.7
8	66,063	2478.4	− 2586	−107.6	× 24 / 85	−30.4
11	66,064	2478.7	− 2628	−149.3	× 26 / 85	−45.7
Sum, rounded to a whole point						−124

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −85, −32, −83, −119, −103, −98, −95, −124 → −92.4
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2017: 53 · 2017→2018: 51 · 2018→2022: 36 · 2022→2023: 16 · 2023→2024: 5 · 2024→2025: 3 · 2025→2026: 29 → average 27.6
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 27.6 × 2.66 = 73.4. Upper limit −19, lower limit −165.8.

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.