Campus · Traditional
Shirley Isom-Newsome Montessori Academy at Harry S
Dallas County · Region 10: Richardson · 523 students
Shirley Isom-Newsome Montessori Academy at Harry S is rated B by TEA, scoring 89 out of 100 for 2025-26 — above the 79.6 average of the 2,021 schools serving a similar share of economically disadvantaged students, and above the statewide average of 81.3. It is down 1 point since 2021-22 — both years scored under TEA's current rules, since TEA rewrote them in 2023; under the rules in force back then it scored 84.
Ranks 1,913th of 7,646 Texas schools (tied with 285 others), and 337th of 1,157 in Region 10: Richardson (tied with 44 others).
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5 years of ratings
2021-22 is shown under the refreshed methodology TEA adopted in 2023, so it is comparable with later years. Under the original scoring it was rated B with 84 that year.
| Year | Rating | Score | Similar | State |
|---|---|---|---|---|
| 2025-26 | B | 89 | 79.6 | 81.3 |
| 2024-25 | B | 86 | 79.3 | 81.2 |
| 2023-24 | B | 83 | 77.3 | 78.9 |
| 2022-23 | B | 89 | 77.8 | 79.1 |
| 2021-22 | A | 90 | 82.1 | 83.7 |
How this school's change over time is ranked
TEA publishes most measures for one year only, so a change ranking exists just where the same figure is published across years — the overall score, the five score domains, and per-student spending. This page does not yet state where Shirley Isom-Newsome Montessori Academy at Harry S itself places on these lists, only that the lists exist; open one to find this school's own row.
Texas schools
Where the score comes from
Texas builds the overall rating from the better of Student Achievement and School Progress, weighted 70%, plus Closing the Gaps at 30%. School Progress is itself the better of Academic Growth and Relative Performance. The 60, 70, 80 and 90 rules mark the letter-grade thresholds.
- Shirley Isom-Newsome Montessori Academy at Harry S
- Similar student population (2,021)
- Region 10: Richardson (1,157)
| Domain | Score | Grade | Points to next grade |
|---|---|---|---|
| Student Achievement | 86 | B | 4 |
| School Progress | 89 | B | 1 |
| Closing the Gaps | 90 | A | — |
| Academic Growth | 82 | B | 8 |
| Relative Performance | 89 | B | 1 |
Closest to moving up: School Progress, 1 point below A in that domain — the nearest of the measures that count toward the overall rating.
TEA does not add the domains up. The overall score is the better of Student Achievement and School Progress at 70%, plus Closing the Gaps at 30%. For this school that better measure is School Progress (89), so Student Achievement (86) is published above but does not enter the overall score at all — gaining points there changes nothing until it passes 89.
Student outcomes
STAAR performance
- Approaches grade level
- Meets grade level
- Masters grade level
- Tick: Similar student population (2,021)
Percentage of tests at or above each level. Masters is a subset of Meets, which is a subset of Approaches. The tick on each bar marks the average for Similar student population (2,021 schools) — a comparison TEA does not publish.
Who this school serves
Placed after the results deliberately: this is context for reading them, not an explanation of them.
- Students
- 523
- Economically disadvantaged
- 67.7%±0.0 pts vs similar
- English learners
- 24.1%+4.7 pts vs similar
- Special education
- 4.0%−14.8 pts vs similar
- Attendance
- 96.3%+2.3 pts vs similar
- Chronically absent
- 5.9%−11.4 pts vs similar
Student demographics
- African American 42.1%
- Hispanic 52.6%
- White 1.9%
- American Indian 0.4%
- Asian 1%
- Pacific Islander 0.2%
- Two or More Races 1.9%
Spending per student
Compared against TEA's own peer group, which controls for size and student population, and against the state.
- Shirley Isom-Newsome Montessori Academy at Harry S
- TEA peer group
- Texas average
TEA's published file does not include peer-group spending for this entity, so no comparison is shown.
Not reported by TEA for this entity: peer.
Teachers
- Average salary
- $69,437+$2,916 vs similar
- Teachers
- 34
- Students per staff member
- 15.6
Teaching experience
- Beginning 6%
- 1 to 5 years 37.3%
- 6 to 10 years 3%
- 11 to 20 years 32.8%
- 21 to 30 years 14.9%
- Over 30 years 6%
Where this school ranks best
Out of 100 rankings computed across every published metric and every comparison group, these are the placements that stand out. Press Copy for a citable sentence.
-
66of 1,956
Attendance
Similar student population · of the 1,956 that report this measure · tied with 6
-
70of 1,907
Reading — Meets
Similar student population · of the 1,907 that report this measure · tied with 4
-
73of 1,907
Reading — Approaches
Similar student population · of the 1,907 that report this measure · tied with 16
-
74of 1,907
Reading — Masters
Similar student population · of the 1,907 that report this measure · tied with 11
-
85of 1,955
Chronically absent (lowest is best)
Similar student population · of the 1,955 that report this measure · tied with 5
-
1of 562
Per-student spending
Dallas County · of the 562 that report this measure · tied with 230
These are selected high placements, not a summary. Every figure above this section is the full picture, including where this campus ranks poorly. Each statement below states its cohort and its denominator so it can be checked — a rank without an n is a boast, not a fact. Ties are shown because a shared ceiling is not a sole first place. Every ranking this site publishes, including the ones no school would put in a press release.
Where this comes from
Every figure on this page comes from data the Texas Education Agency publishes at txschools.gov, fetched 15 August 2026 and archived with a checksum so each number stays traceable to the bytes TEA served.
Download the full dataset · this campus's district
Single-file records are pre-built for districts only, so there is no per-campus CSV to
link here — 9,086 entities in two formats is 18,172 assets, on top of everything else this site
publishes, and that is past the 20,000-asset limit this site is published under. This campus is a row
in the bulk files on the download page, keyed by its TEA id 057905212.