Hart-Ransom Charter: 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 11.

3rd The average 3rd grader scores 10 points under the grade 3 bar. 2426 vs. 2436.
4th The average 4th grader scores 40 points under the grade 4 bar. 2445 vs. 2485.
5th The average 5th grader scores 39 points under the grade 4 bar. 2447 vs. 2485. The 5th-grade bar is 2528.
6th The average 6th grader scores just under the grade 6 bar. 2546 vs. 2552.
7th The average 7th grader scores 11 points under the grade 6 bar. 2541 vs. 2552. The 7th-grade bar is 2567.
8th The average 8th grader scores 14 points under the grade 6 bar. 2539 vs. 2552. The 8th-grade bar is 2586.
11th The average 11th grader scores 30 points under the grade 11 bar. 2598 vs. 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
3	96,799	2382.3	− 2436	−53.7	× 31 / 161	−10.3
4	96,800	2436.5	− 2485	−48.5	× 29 / 161	−8.7
5	96,803	2484.8	− 2528	−43.2	× 17 / 161	−4.6
6	96,804	2475.0	− 2552	−77	× 25 / 161	−12
7	96,807	2572.2	− 2567	5.2	× 34 / 161	1.1
8	96,808	2506.6	− 2586	−79.4	× 25 / 161	−12.3
Sum, rounded to a whole point						−47

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	89,761	2435.6	− 2436	−0.4	× 22 / 195	0
4	89,763	2439.1	− 2485	−45.9	× 33 / 195	−7.8
5	89,765	2476.2	− 2528	−51.8	× 33 / 195	−8.8
6	89,766	2479.1	− 2552	−72.9	× 18 / 195	−6.7
7	89,769	2535.1	− 2567	−31.9	× 32 / 195	−5.2
8	89,770	2567.0	− 2586	−19	× 38 / 195	−3.7
11	89,773	2545.0	− 2628	−83	× 19 / 195	−8.1
Sum, rounded to a whole point						−40

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,389	2412.6	− 2436	−23.4	× 34 / 202	−3.9
4	92,391	2441.7	− 2485	−43.3	× 28 / 202	−6
5	92,392	2471.7	− 2528	−56.3	× 32 / 202	−8.9
6	92,394	2495.2	− 2552	−56.8	× 35 / 202	−9.8
7	92,397	2538.0	− 2567	−29	× 22 / 202	−3.2
8	92,399	2550.7	− 2586	−35.3	× 32 / 202	−5.6
11	92,400	2576.9	− 2628	−51.1	× 19 / 202	−4.8
Sum, rounded to a whole point						−42

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,588	2415.5	− 2436	−20.5	× 28 / 208	−2.8
4	92,589	2447.0	− 2485	−38	× 30 / 208	−5.5
5	92,592	2466.9	− 2528	−61.1	× 32 / 208	−9.4
6	92,593	2514.2	− 2552	−37.8	× 35 / 208	−6.4
7	92,596	2534.9	− 2567	−32.1	× 34 / 208	−5.2
8	92,597	2543.0	− 2586	−43	× 26 / 208	−5.4
11	92,600	2543.4	− 2628	−84.6	× 23 / 208	−9.4
Sum, rounded to a whole point						−44

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	93,226	2416.4	− 2436	−19.6	× 14 / 181	−1.5
4	93,227	2472.8	− 2485	−12.2	× 26 / 181	−1.8
5	93,228	2473.0	− 2528	−55	× 33 / 181	−10
6	93,229	2525.7	− 2552	−26.3	× 29 / 181	−4.2
7	93,230	2555.0	− 2567	−12	× 31 / 181	−2.1
8	93,231	2564.2	− 2586	−21.8	× 30 / 181	−3.6
11	93,232	2570.8	− 2628	−57.2	× 18 / 181	−5.7
Sum, rounded to a whole point						−29

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	91,241	2420.4	− 2436	−15.6	× 26 / 223	−1.8
4	91,242	2457.3	− 2485	−27.7	× 41 / 223	−5.1
5	91,243	2477.6	− 2528	−50.4	× 25 / 223	−5.7
6	91,244	2557.0	− 2552	5	× 39 / 223	0.9
7	91,245	2560.0	− 2567	−7	× 37 / 223	−1.2
8	91,246	2588.6	− 2586	2.6	× 30 / 223	0.3
11	91,247	2578.2	− 2628	−49.8	× 25 / 223	−5.6
Sum, rounded to a whole point						−18

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	93,457	2408.0	− 2436	−28	× 19 / 212	−2.5
4	93,458	2443.9	− 2485	−41.1	× 31 / 212	−6
5	93,459	2494.7	− 2528	−33.3	× 39 / 212	−6.1
6	93,460	2521.5	− 2552	−30.5	× 26 / 212	−3.7
7	93,461	2575.8	− 2567	8.8	× 33 / 212	1.4
8	93,462	2572.4	− 2586	−13.6	× 43 / 212	−2.8
11	93,463	2568.3	− 2628	−59.7	× 21 / 212	−5.9
Sum, rounded to a whole point						−26

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	93,353	2425.8	− 2436	−10.2	× 37 / 223	−1.7
4	93,354	2454.0	− 2485	−31	× 21 / 223	−2.9
5	93,355	2469.8	− 2528	−58.2	× 33 / 223	−8.6
6	93,356	2537.2	− 2552	−14.8	× 38 / 223	−2.5
7	93,357	2531.0	− 2567	−36	× 31 / 223	−5
8	93,358	2584.4	− 2586	−1.6	× 27 / 223	−0.2
11	93,359	2595.3	− 2628	−32.7	× 36 / 223	−5.3
Sum, rounded to a whole point						−26

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	93,240	2405.3	− 2436	−30.7	× 29 / 213	−4.2
4	93,241	2456.1	− 2485	−28.9	× 40 / 213	−5.4
5	93,242	2483.8	− 2528	−44.2	× 24 / 213	−5
6	93,243	2480.2	− 2552	−71.8	× 32 / 213	−10.8
7	93,244	2552.2	− 2567	−14.8	× 37 / 213	−2.6
8	93,245	2569.2	− 2586	−16.8	× 26 / 213	−2.1
11	93,246	2602.8	− 2628	−25.2	× 25 / 213	−3
Sum, rounded to a whole point						−33

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	92,970	2395.2	− 2436	−40.8	× 31 / 243	−5.2
4	92,971	2439.8	− 2485	−45.2	× 26 / 243	−4.8
5	92,972	2507.3	− 2528	−20.7	× 43 / 243	−3.7
6	92,973	2512.4	− 2552	−39.6	× 27 / 243	−4.4
7	92,974	2530.6	− 2567	−36.4	× 40 / 243	−6
8	92,975	2555.3	− 2586	−30.7	× 42 / 243	−5.3
11	92,976	2610.6	− 2628	−17.4	× 34 / 243	−2.4
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	92,570	2425.9	− 2436	−10.1	× 36 / 266	−1.4
4	92,571	2444.8	− 2485	−40.2	× 37 / 266	−5.6
5	92,572	2446.5	− 2528	−81.5	× 27 / 266	−8.3
6	92,573	2546.4	− 2552	−5.6	× 42 / 266	−0.9
7	92,574	2541.0	− 2567	−26	× 34 / 266	−3.3
8	92,575	2538.5	− 2586	−47.5	× 43 / 266	−7.7
11	92,576	2597.7	− 2628	−30.3	× 47 / 266	−5.4
Sum, rounded to a whole point						−32

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −47, −40, −42, −44, −29, −18, −26, −26, −33, −32, −32 → −33.5
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 2 · 2017→2018: 2 · 2018→2019: 15 · 2019→2021: 11 · 2021→2022: 8 · 2022→2023: 0 · 2023→2024: 7 · 2024→2025: 1 · 2025→2026: 0 → average 5.3
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 5.3 × 2.66 = 14.1. Upper limit −19.4, lower limit −47.6.

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.