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Alumni: what's one memory from Ann Arbor Open at Mack School that still sticks with you?
Community prompt from u/allk12. Replies below.
Enrollment
508
Elementary
DISTRICT 376 · STATE 369
SCHOOL COMMUNITY·ANN ARBOR PUBLIC SCHOOLS·NCES 260282004006
Ann Arbor Open at Mack School
920 MILLER AVE, ANN ARBOR, MI 48103 · (734) 994-1910 · Washtenaw County
GRADES KG–08ELEMENTARY12-CITYREGULAR SCHOOL508 STUDENTS
A
allk12 Grade
Scored higher than 89% of Michigan public elementary schools
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- A-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Michigan public elementary schools
Student : Teacher
14.8:1
34 FTE teachers
DISTRICT 14.5:1 · STATE 15.8:1
Free / Reduced Lunch
10%
51 students
DISTRICT 28% · STATE 55%
Community
5
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 69 | 14% |
| Grade 1 | 58 | 11% |
| Grade 2 | 63 | 12% |
| Grade 3 | 59 | 12% |
| Grade 4 | 61 | 12% |
| Grade 5 | 57 | 11% |
| Grade 6 | 50 | 10% |
| Grade 7 | 43 | 8% |
| Grade 8 | 48 | 9% |
This year's kindergarten class (69) is 44% larger than its 8th grade class (48).
Student demographics
48%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 69% · STATE 56% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
M-STEP 2024-25 . % Advanced + ProficientEnglish Language Arts
71.7%
MI avg 47.7%
Math
62.3%
MI avg 44.8%
What this means: On the M-STEP, Michigan's statewide test, about 72 of every 100 students at this school read and write at grade level and about 62 of 100 do math at grade level. Across all Michigan schools, those numbers are about 48 and 45.
Source: M-STEP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
69.4%
composite math + reading, all grades
Predicted
61.8%
based on MI schools with similar FRL share
Beats by
+7.6pp
above demographic expectation
What this means: About 69% of students here test proficient in math and reading, compared with the roughly 62% typical for Michigan schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Michigan's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Ann Arbor Open at Mack School
Ann Arbor Open at Mack School's state test result (69.4% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Ann Arbor Open at Mack School this school | 508 | 10.0% | 69.4% |
| Wines Elementary School ANN ARBOR | 465 | 9.7% | 69.8% |
| West Maple Elementary School BLOOMFIELD HILLS | 529 | 10.0% | 65.3% |
| Lone Pine Elementary School W BLOOMFIELD | 432 | 11.8% | 67.4% |
| Hugger Elementary School ROCHESTER | 512 | 7.8% | 61.3% |
| Lake Center Elementary School PORTAGE | 494 | 17.2% | 55.6% |
Matched among Michigan elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Ann Arbor Open at Mack School ranks
Among elementary schools| Measure | This school | In Michigan | In Washtenaw County |
|---|---|---|---|
| State test proficiency ranked highest first | 69.4% | #76 of 1,085 | #9 of 39 |
| Math proficiency ranked highest first | 62.3% | #183 of 1,072 | #16 of 39 |
| Reading proficiency ranked highest first | 71.7% | #66 of 1,139 | #6 of 39 |
| Enrollment ranked largest first | 508 | #261 of 1,630 | #8 of 53 |
| Students per teacher ranked fewest first | 14.8:1 | #452 of 1,424 | #25 of 47 |
| Diversity index ranked most diverse first | 47.9% | #501 of 1,424 | #34 of 47 |
| Free and reduced lunch ranked highest share first | 10.0% | #1,515 of 1,563 | #46 of 50 |
| Enrollment change since 2017-18 ranked steepest decline first | -1.9% | #909 of 979 | #30 of 32 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
508
-27 (-5%) vs 2020
+42% since 1990-91, when it was 359
Student : Teacher
14.8:1
was 16.7:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 508 | 34.2 | 14.8:1 | 10% (51) |
| 2023-24 | 541 | 35.1 | 15.4:1 | 13% (68) |
| 2022-23 | 517 | 33.1 | 15.6:1 | 11% (57) |
| 2020-21 | 535 | 32 | 16.7:1 | 7% (39) |
| 2017-18 | 518 | 34.3 | 15.1:1 | 11% (57) |
| 2015-16 | 539 | 27 | 20.0:1 | 7% (40) |
| 2010-11 | 496 | 27 | 18.4:1 | 9% (45) |
| 2000-01 | 452 | 30 | 15.1:1 | 17% (75) |
| 1990-91 | 359 | N/A | N/A | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Ann Arbor Open at Mack School.
Since 2017-18: students down 2% (518 to 508); teachers unchanged (34.3 to 34.2).
About Ann Arbor Open at Mack School
Ann Arbor Open at Mack School is a medium-sized elementary school in ANN ARBOR, Michigan, (ZIP code 48103). The student body numbers 508 students, from kindergarten through 8. Average enrollment for elementary schools in Michigan is about 369, so this school runs 38% bigger than that.
Ann Arbor Public Schools has 16,551 students in 32 schools, and Ann Arbor Open at Mack School is one of those schools.
White students make up a majority at Ann Arbor Open at Mack School, at 70%. The remaining shares are 15% multiracial, 8% Hispanic, and 5% Asian. The White share in Washtenaw County as a whole is similar, at about 69%. Pick two students at random and there is a 48% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.
Teachers at Ann Arbor Open at Mack School total 34.2 full-time equivalents, and the ratio is 14.8:1. That is 1.0 students per teacher below the 15.8:1 average for elementary schools in Michigan. Federal records put free or reduced-price lunch eligibility at 10%. Among public schools in Washtenaw County, the average eligibility rate is 34%.
Ann Arbor Open at Mack School is graded A by allk12, scoring above 89% of Michigan public elementary schools once test results, poverty-adjusted performance, and the recent trend are combined.
In Michigan, Ann Arbor Open at Mack School is in the middle band of BeatsExpectations: 69.4% actual against a predicted 61.8%.
Census Bureau estimates for Washtenaw County show that the median household income is $89,180, the share of adults with a bachelor's degree or higher is 59%, and roughly 7% of residents are in poverty. Ann Arbor Open at Mack School is one of 104 public schools in the county.
The closest public school, Slauson Middle School, is about 0.5 miles from Ann Arbor Open at Mack School. Other public schools within five miles: at least 8. Ranked by average proficiency, Ann Arbor Open at Mack School places 3rd out of 8 schools in its immediate area.
NCES describes the area around Ann Arbor Open at Mack School as City: Mid-size, meaning inside a principal city with a population between 100,000 and 250,000.
The school enrolled 508 students in 2024-25, 27 fewer than the 535 it had in 2020-21. There were fewer students per teacher in 2024-25 (14.8:1) than in 2020-21 (16.7:1).
Threads on this page can be about sports tryouts, band and choir, and theater. Anyone with firsthand experience at this school can post or comment.
Washtenaw County at a glance
View full county profilePopulation
369,822
Census ACS
Median income
$89,180
Household, ACS
Bachelor's+
59%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
104
42,861 students
Quick facts
Related schools
Other schools in Ann Arbor Public Schools
- Huron High SchoolHigh · 1,696 students
- Pioneer High SchoolHigh · 1,671 students
- Skyline High SchoolHigh · 1,237 students
- Slauson Middle SchoolMiddle · 729 students
- Clague Middle SchoolMiddle · 696 students
- Tappan Middle SchoolMiddle · 695 students
Other schools in ANN ARBOR
- Huron High SchoolHigh · 1,696 students
- Pioneer High SchoolHigh · 1,671 students
- Skyline High SchoolHigh · 1,237 students
- Washtenaw Technical Middle CollegeHigh · 821 students
- Slauson Middle SchoolMiddle · 729 students
- Clague Middle SchoolMiddle · 696 students
Nearby schools
- Slauson Middle School0.5 mi · 729
- Forsythe Middle School0.7 mi · 635
- Bach Elementary School0.8 mi · 334
- Community High School0.8 mi · 513
- Haisley Elementary School0.9 mi · 400
- Wines Elementary School0.9 mi · 465
Frequently asked questions
About Ann Arbor Open at Mack SchoolHow many students attend Ann Arbor Open at Mack School?
Ann Arbor Open at Mack School enrolls approximately 508 students in grades KG-08.
Is Ann Arbor Open at Mack School an elementary, middle, or high school?
Ann Arbor Open at Mack School is an elementary school covering grades KG-08.
What is the student-teacher ratio at Ann Arbor Open at Mack School?
The student-to-teacher ratio at Ann Arbor Open at Mack School is approximately 14.8:1 (34 FTE teachers).
What is the student diversity at Ann Arbor Open at Mack School?
Student demographics at Ann Arbor Open at Mack School are roughly 70% White, 8% Hispanic, 2% Black, 5% Asian, 15% Two or more.
Is Ann Arbor Open at Mack School public or private?
Ann Arbor Open at Mack School is a public K-12 school, overseen by Ann Arbor Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.