Effective Feedback
The difference between feedback that drives learning and feedback that wastes everyone's time.
What is it?
Effective feedback is specific information about the gap between current performance and a desired goal, communicated in a way that helps the student close that gap. This definition from John Hattie and Helen Timperley distinguishes it from two common imposters: praise ('great work!'), which has no informational value, and criticism ('needs improvement'), which identifies a problem without showing a path forward.
Hattie's meta-analysis (Visible Learning) found feedback to be one of the most powerful influences on learning — with an effect size of 0.73. But the crucial nuance is that not all feedback is equally effective. Feedback about the task (what was done well and poorly) is more effective than feedback about the process (how the student is approaching it), which is more effective than feedback about self-regulation. Feedback about the person ('you are very smart') is the least effective and can actually be harmful.
Dylan Wiliam adds that effective feedback is 'more work for the recipient than for the giver.' A teacher who writes three paragraphs of feedback on a student's essay did more work than the student. If the student reads those three paragraphs and files the essay away, learning did not occur. The design of feedback must include time and space for the student to act on it.
Effective feedback is the bridge between where the student is and where they need to be.
— John HattieWhat does it look like in class?
Instead of writing 'unclear argument' on an essay, the teacher writes: 'Your main argument is on line 3, but your second paragraph goes off topic. How could you connect paragraph 2 to your main argument? Try rewriting it with that question in mind.' There is time in class the next day to revise based on the feedback.
The teacher uses the 'two stars and a wish' model: two specific positive things ('you used three different sources — that strengthens your argument'; 'the opening question caught my attention') and one specific improvement ('the conclusion repeats the introduction literally — what new idea can you add?').
After returning assessed work, the teacher gives 10 minutes for students to read the feedback, write one question they have about it, and revise one specific part. Feedback that is not acted upon is wasted. The revision time is not optional — it is part of the class.
The teacher uses Wiliam's 'three feedback questions': where am I going? (What is the goal?), where am I now? (How am I doing?), what is the next step? (What should I do to close the gap?). Feedback is organized around these three questions.
Signs it works
- Students can explain the difference between what they did and what excellent performance looks like
- Feedback changes student behavior — they revise, retry, adjust their approach
- Students seek feedback before the deadline, not only after receiving a grade
- Feedback focuses on the task and process, not on the person's intelligence or effort
- Students use feedback from a previous task to improve the next one
Common mistakes
Returning work after too much time has passed — delayed feedback loses relevance
Writing detailed feedback on final products that will not be revised — the work of the person who wrote it is not going to serve anyone
Giving global feedback to the group when the student needs individual feedback
Praising effort without information: 'you tried hard' is not feedback — it does not tell the student what to do differently
Key thinkers
New Zealand researcher and author of Visible Learning, the largest meta-analysis of educational research. His work quantified feedback as one of the most powerful influences on learning outcomes.
Education researcher and co-author of Inside the Black Box. Developed the framework of five strategies for formative assessment where feedback plays a central role.
Argentine education expert and author of Formative Assessment. Leading reference for feedback design in Latin American classrooms.
Educator and author of An Ethic of Excellence. Creator of the 'critique protocol' used in schools worldwide — structured peer feedback that transforms the quality of student work.
Dive deeper
BookVisible Learning for Teachers — John HattiePractical version of Hattie's meta-analysis. Chapter 5 on feedback is one of the most cited in educational research.
BookHow to Give Effective Feedback — Susan BrookhartPractical guide for designing and delivering effective feedback. Covers timing, amount, mode, and content of feedback with classroom examples.
WebsiteEffective Feedback — DEXPAGuide in Spanish on the design of actionable feedback in learning experience design, with examples for different contexts.
VideoAustin's Butterfly — Ron Berger (EL Education)Famous 6-minute video showing how structured feedback transforms a first-grade student's drawing through multiple revisions. Used worldwide to demonstrate critique protocols.
PDFThe Power of Feedback — Hattie & TimperleyThe original 2007 article by Hattie and Timperley in Review of Educational Research. Defines the four levels of effective feedback and the three questions that guide it.
ToolExit Ticket
ToolComprehension Stoplight
ToolAgreement Scale
ToolWork Gallery