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An empty school hallway before the building fills.

The Manifesto

Something doesn’t add up.

A documentary journey through the ideas, evidence, and stories behind the Public School Manifesto.

Welcome

The Public School Manifesto is a documentary journey through the ideas, evidence, and stories that shaped this work.

Rather than reading one continuous document, you can explore it as a series of exhibits.

Each exhibit stands on its own. Together they tell one story.

There is no required path. Begin wherever your curiosity takes you.

The Exhibits

A dim school hallway at dusk with blueprints pinned to the wall.

Exhibit I

The First Evidence

The observations that first made us question what was really happening inside schools.

Enter Exhibit →About 4 min
Nine closed classroom doors along a quiet corridor.

Exhibit II

The Polite Fictions

Nine reasonable-sounding stories schools tell to stay comfortable.

Enter Exhibit →About 9 min
A wall of maps, research notes, pins and thread under lamp light.

Exhibit III

Why We Investigated

The moment the frustrations stopped looking isolated and started demanding an answer.

Enter Exhibit →About 3 min
Stacks of district reports narrowing toward three illuminated folders.

Exhibit IV

How the Investigation Narrowed

From 108 districts to three schools we could study closely.

Enter Exhibit →About 6 min
Morning light flooding a classroom where teachers work together.

Exhibit V

Why It Works

The research beneath the practices that kept appearing in every improving school.

Enter Exhibit →About 7 min
Educators seated together in warm, low interview light.

Exhibit VI

What We Heard

The people who did the work, describing it in their own words.

Enter Exhibit →About 10 min
A single wooden chair beside a tall window in an empty room.

Exhibit VII

One Last Thought

What remains after the evidence has been laid out.

Enter Exhibit →About 2 min

Before you decide

The investigation is finished. What remains is not a conclusion but a choice — where you sit, and what you are willing to look at in your own building. Take the next step at the pace that fits you.

Choose your seat

Four seats. One conversation.

Choose your seat.

You know public schools from where you sit.
Start there.

A teacher sitting alongside two students, looking at their work together.
Teacher & Coach

Teacher & Coach

You carry the daily work of turning expectations into learning.

BEGIN THE TEACHER JOURNEY
A principal talking with two staff members in a school hallway.
Building & District Leader

Building & District Leader

You carry decisions, priorities, people, and problems that rarely fit inside the calendar.

BEGIN THE LEADER JOURNEY
A parent walking with their child outside a school entrance, listening.
Parent & Community

Parent & Community

You experience school through the life, learning, and well-being of a child.

BEGIN THE PARENT JOURNEY
School board members seated at a meeting table, listening and taking notes.
Board Member & Community

Board Member & Community

You help shape the priorities, resources, and conditions that eventually reach classrooms.

BEGIN THE BOARD JOURNEY

Continue the Investigation

You’ve experienced the museum’s curated interpretation of the Public School Manifesto. Choose where you’d like to go next.

The Evidence Wing

The archive. Every investigation, every research finding, every witness statement — examined at your own pace.

Enter the archive

Discover Your School’s Story

Nine quick signals to consider what is happening where you are — and one conversation worth having.

Take the check

The Complete Public School Manifesto

Every chapter, extended research, complete case studies, source notes and references — the permanent record.

Download the PDF

The permanent record

Continue Beyond the Museum

You've experienced the curated exhibition. For the complete work — including every chapter, extended commentary, references, and supporting materials — download The Complete Public School Manifesto.

The full Manifesto contains

  • Every chapter
  • Extended research
  • Complete case studies
  • Source notes
  • References
Download the PDFThe Complete Public School Manifesto

About the authors

Built through decades of district leadership, superintendent experience, and hands-on use of Professor John Hattie’s Visible Learning research in schools.

Dave Nagel headshot

Dave Nagel

Co-Author & Consultant

Bruce Potter headshot

Bruce Potter

Co-Author & Retired Superintendent

Grading Visible Learners (Corwin, 2025) book coverDeveloping Collaborative Expertise Teams (Corwin, 2026) book cover

Co-authors of Grading Visible Learners (Corwin, 2025) and Developing Collaborative Expertise Teams (Corwin, 2026).

References

Master references ledger
  1. [1]TNTP. (2024). The Opportunity Makers: How a diverse group of public schools helps students catch up — and how far more can. TNTP.
  2. [2]Nagel, D., & Potter, B. (2026). Developing Collaborative Expertise Teams: Transforming Schools Through Coherence, Belonging, and Consistency. Corwin Press.
  3. [3]TNTP. (2018). The Opportunity Myth: What students can show us about how school is letting them down — and how to fix it. TNTP.
  4. [4]Hattie, J. (2023). Visible Learning: The Sequel — A synthesis of over 2,100 meta-analyses relating to achievement. Routledge.
  5. [5]The Education Trust. (2020). The steep cost of missed opportunities: How the opportunity gap is failing our students.
  6. [6]Moldt, S. R. (2016). Making the Grade: A ground-level analysis of New York State's teacher performance review under the APPR. BYU Education & Law Journal, 2016(2), 217–261.
  7. [7]Center for Education Policy Research (Harvard University), Educational Opportunity Project (Stanford University), & Dartmouth College. (May 2026). The Education Scorecard.
  8. [8]Cavanagh, S. (2003). Stanford University research study on the disconnect between high school coursework alignment and college standardized test expectations.
  9. [9]Najarro, I. (2024a). Discrepancies and inconsistencies in K-12 report card marks versus state benchmarks and Advanced Placement exam outcomes.
  10. [10]Najarro, I. (2024b). The growing structural mismatch between student classroom grades and scores on national standardized assessments (SAT/ACT).
  11. [11]Nagel, D., & Potter, B. (2025). Grading Visible Learners: Learning With Fluidity Not Finality. Corwin Press.
  12. [12]Hattie, J. (2015). What Works Best in Education: The Politics of Collaborative Expertise. London: Pearson (Open Ideas at Pearson).
  13. [13]Sartain, L., & Morris, W. T. (2024). Are Teachers Satisfied With Their Evaluations? The Importance of Teaching Context and Trends Over Time. AERA Open, 10(1), 1–16. https://doi.org/10.1177/23328584231221539
  14. [14]Office of Education Policy. (2024, June). Effects of PLC at Work in Arkansas on student academic outcomes (Volume 21, Issue 1). University of Arkansas.
  15. [15]Marken, S., & Agrawal, S. (2022, June 13). K-12 Workers Have Highest Burnout Rate in U.S. Gallup.
  16. [16]Learning Policy Institute. (2025, July 16). An Overview of Teacher Shortages: 2025 [Fact Sheet].
  17. [17]Grissom, J. A., Loeb, S., & Master, B. (2013). Effective Instructional Time Use for School Leaders: Longitudinal Evidence from Observations of Principals. Educational Researcher, 42(8), 433-444.
  18. [18]National Center for Education Statistics. (2022). Average hours per week that public K–12 school principals spent on all school-related activities and percentage of time spent on various tasks: 2020–21. U.S. Department of Education.
  19. [19]Hollister, R., & Watkins, M. D. (2018, September–October). Too Many Projects: How to deal with initiative overload. Harvard Business Review.