Calaveras County Office Of Education: math

The shaded band is this district'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	5,268	2387.0	− 2436	−49	× 22 / 262	−4.1
4	5,269	2400.6	− 2485	−84.4	× 29 / 262	−9.3
5	5,272	2452.0	− 2528	−76	× 41 / 262	−11.9
6	5,273	2451.6	− 2552	−100.4	× 22 / 262	−8.4
7	5,276	2457.4	− 2567	−109.6	× 50 / 262	−20.9
8	5,277	2470.3	− 2586	−115.7	× 47 / 262	−20.8
11	5,280	2494.2	− 2628	−133.8	× 51 / 262	−26
Sum, rounded to a whole point						−101

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,737	2333.8	− 2436	−102.2	× 17 / 219	−7.9
4	4,739	2411.1	− 2485	−73.9	× 18 / 219	−6.1
5	4,740	2461.3	− 2528	−66.7	× 23 / 219	−7
6	4,742	2485.8	− 2552	−66.2	× 40 / 219	−12.1
7	4,744	2521.2	− 2567	−45.8	× 26 / 219	−5.4
8	4,746	2489.8	− 2586	−96.2	× 37 / 219	−16.3
11	4,749	2534.4	− 2628	−93.6	× 58 / 219	−24.8
Sum, rounded to a whole point						−80

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,840	2400.5	− 2436	−35.5	× 22 / 256	−3.1
4	4,842	2432.8	− 2485	−52.2	× 27 / 256	−5.5
5	4,845	2429.2	− 2528	−98.8	× 26 / 256	−10
6	4,846	2464.4	− 2552	−87.6	× 42 / 256	−14.4
7	4,849	2491.7	− 2567	−75.3	× 55 / 256	−16.2
8	4,851	2501.3	− 2586	−84.7	× 40 / 256	−13.2
11	4,853	2506.7	− 2628	−121.3	× 44 / 256	−20.8
Sum, rounded to a whole point						−83

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,830	2383.0	− 2436	−53	× 27 / 280	−5.1
4	4,833	2455.9	− 2485	−29.1	× 24 / 280	−2.5
5	4,834	2455.3	− 2528	−72.7	× 27 / 280	−7
6	4,837	2476.2	− 2552	−75.8	× 28 / 280	−7.6
7	4,838	2501.1	− 2567	−65.9	× 57 / 280	−13.4
8	4,841	2476.6	− 2586	−109.4	× 74 / 280	−28.9
11	4,842	2528.5	− 2628	−99.5	× 43 / 280	−15.3
Sum, rounded to a whole point						−80

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,864	2367.0	− 2436	−69	× 18 / 247	−5
4	4,865	2429.7	− 2485	−55.3	× 24 / 247	−5.4
5	4,866	2438.7	− 2528	−89.3	× 33 / 247	−11.9
6	4,867	2447.8	− 2552	−104.2	× 25 / 247	−10.5
7	4,868	2479.4	− 2567	−87.6	× 39 / 247	−13.8
8	4,869	2500.3	− 2586	−85.7	× 61 / 247	−21.2
11	4,870	2481.7	− 2628	−146.3	× 47 / 247	−27.8
Sum, rounded to a whole point						−96

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,640	2398.1	− 2436	−37.9	× 24 / 232	−3.9
4	4,641	2432.6	− 2485	−52.4	× 27 / 232	−6.1
5	4,642	2477.5	− 2528	−50.5	× 22 / 232	−4.8
6	4,643	2474.2	− 2552	−77.8	× 31 / 232	−10.4
7	4,644	2523.5	− 2567	−43.5	× 38 / 232	−7.1
8	4,645	2491.2	− 2586	−94.8	× 34 / 232	−13.9
11	4,646	2505.0	− 2628	−123	× 56 / 232	−29.7
Sum, rounded to a whole point						−76

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,715	2351.7	− 2436	−84.3	× 23 / 231	−8.4
4	4,716	2460.7	− 2485	−24.3	× 21 / 231	−2.2
5	4,717	2457.6	− 2528	−70.4	× 22 / 231	−6.7
6	4,718	2456.9	− 2552	−95.1	× 21 / 231	−8.6
7	4,719	2477.4	− 2567	−89.6	× 45 / 231	−17.5
8	4,720	2474.5	− 2586	−111.5	× 53 / 231	−25.6
11	4,721	2509.1	− 2628	−118.9	× 46 / 231	−23.7
Sum, rounded to a whole point						−93

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,703	2410.6	− 2436	−25.4	× 18 / 220	−2.1
4	4,704	2411.4	− 2485	−73.6	× 30 / 220	−10
5	4,705	2449.7	− 2528	−78.3	× 23 / 220	−8.2
6	4,706	2484.0	− 2552	−68	× 22 / 220	−6.8
7	4,707	2473.7	− 2567	−93.3	× 34 / 220	−14.4
8	4,708	2474.4	− 2586	−111.6	× 51 / 220	−25.9
11	4,709	2482.6	− 2628	−145.4	× 42 / 220	−27.8
Sum, rounded to a whole point						−95

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,660	2367.9	− 2436	−68.1	× 30 / 217	−9.4
4	4,661	2420.7	− 2485	−64.3	× 22 / 217	−6.5
5	4,662	2395.2	− 2528	−132.8	× 31 / 217	−19
6	4,663	2435.4	− 2552	−116.6	× 22 / 217	−11.8
7	4,664	2515.5	− 2567	−51.5	× 28 / 217	−6.6
8	4,665	2486.8	− 2586	−99.2	× 37 / 217	−16.9
11	4,666	2526.4	− 2628	−101.6	× 47 / 217	−22
Sum, rounded to a whole point						−92

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	4,624	2396.0	− 2436	−40	× 25 / 235	−4.3
4	4,625	2426.2	− 2485	−58.8	× 35 / 235	−8.8
5	4,626	2436.7	− 2528	−91.3	× 25 / 235	−9.7
6	4,627	2430.8	− 2552	−121.2	× 38 / 235	−19.6
7	4,628	2445.8	− 2567	−121.2	× 30 / 235	−15.5
8	4,629	2493.3	− 2586	−92.7	× 37 / 235	−14.6
11	4,630	2525.2	− 2628	−102.8	× 45 / 235	−19.7
Sum, rounded to a whole point						−92

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −101, −80, −83, −80, −96, −76, −93, −95, −92, −92 → −88.8
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 21 · 2016→2017: 3 · 2017→2018: 3 · 2018→2019: 16 · 2019→2021: 20 · 2021→2022: 17 · 2022→2023: 2 · 2023→2024: 3 · 2024→2025: 0 → average 9.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 9.4 × 2.66 = 25. Upper limit −63.8, lower limit −113.8.

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 — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.

Schools in Calaveras County Office Of Education

Mountain Oaks Charter