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Charles D HarringtonInnovation Academy Charter School
| Measure | Charles D Harrington North Chelmsford, Massachusetts | Innovation Academy Charter School Tyngsboro, Massachusetts |
|---|---|---|
| Success Index (US) | 68 Top 50% | 70 Top 25% |
| State rank | #409 of 1,009 | #146 of 300 |
| National rank | #12994 of 50,301 | #3298 of 16,910 |
| Sector | Public | Charter |
| Type | Elementary | High |
| Year range | Grades K–4 | Grades 5–12 |
| Students | 468 | 770 |
| Enrollment | 468 | 770 |
| Free/reduced-price lunch | – | – |
| Students per teacher | 12.3 | 11.2 |
| Reading proficiency | 62% | 60% |
| Math proficiency | 52% | 61% |
| city | North Chelmsford | Tyngsboro |
| state | Massachusetts | Massachusetts |
| Website | – | – |
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Reading the comparison
Success Index (US) is our 0–100 score (see the methodology). Enrollment: Students enrolled in the latest NCES directory year. Free/reduced-price lunch: Share of students eligible for free or reduced-price lunch. Students per teacher: Enrollment divided by FTE teachers; not class size. Reading proficiency: Share of tested students proficient or above (all students, all grades).