The scene before every exam is the same. Students open their textbooks, highlight passages, and read them over and over again. They’re working hard. But the method is far less efficient than they realize.
I’ve spent a lot of time researching this topic, and here’s what I found.
Cognitive psychology research is unambiguous: re-reading does almost nothing for long-term memory formation. It simply tricks the brain into thinking “I know this” — an illusion known as the Fluency Illusion.
The technique that actually works is retrieval practice.
What Is Retrieval Practice?
Retrieval practice is based on the principle that the act of pulling information out of memory strengthens learning itself. Rather than re-reading a book, it means closing the book and asking, “What do I actually know?” — then answering. [2]
In the famous experiment by Roediger & Karpicke (2006), researchers compared a group that repeatedly studied the same material against a group that studied once and then took repeated tests. One week later, the test-practice group remembered more than 50% better.
Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning. Psychological Science, 17(3), 249–255.
Why Does Retrieval Strengthen Memory?
First, retrieval itself reinforces the memory trace. Every time you pull information out, that pathway becomes stronger — like a forest trail becoming clearer the more you walk it.
Second, failed retrieval actually aids learning. The struggle to find an answer forces deeper cognitive processing. The harder something is to recall, the longer it stays.
7 Techniques You Can Use in the Classroom Right Now
1. Brain Dump
Give students 5 minutes at the start of class and a blank piece of paper. Tell them to write down everything they remember from the last lesson — no books, no notes. It’s hard at first, but the process itself is powerful retrieval practice.
In my Earth science class, I use the first 5 minutes every Monday this way. Watching what students write also gives me real-time insight into what actually landed from the previous week.
2. Low-Stakes Quizzing
Short quizzes with no grades. Three to five questions, under five minutes. Because students know there’s no penalty for wrong answers, they participate without anxiety. The key is immediate feedback right after the quiz.
3. Flashcards
Apps like Anki or Quizlet combine retrieval with spaced repetition for maximum effect. I have students create flashcards for 20 key concepts per unit. The process of making them is already retrieval practice.
4. Fill-in-the-Blank
Give students a summary with key concepts removed and ask them to fill in the gaps. For example: “In plate tectonics, three types of plate boundaries exist: ___, ___, and ___.”
5. Concept Mapping from Memory
Students close their notes and draw a diagram of the relationships between concepts they’ve learned. Asking them to map the connections between mantle convection, plate movement, earthquakes, and volcanoes makes immediately clear who simply knows the terms and who genuinely understands.
6. Pair Quizzing
Students work in pairs — one asks questions, the other answers. After 5 minutes, they switch. This solves the problem of a single teacher being unable to give simultaneous feedback to 30 students.
7. Exit Tickets
In the last 3 minutes of class, students write down 1–2 key things from the lesson and hand it in. I have them write both “the thing I’m most confused about today” and “the thing I understand most clearly today.”
Special Considerations for Students with ADHD
When exploring Special, it helps to consider both the theoretical background and the practical implications. Research shows that a structured approach to Special leads to more consistent outcomes. Breaking the topic into smaller, manageable components allows you to build understanding progressively and apply insights effectively in real-world situations.
Having ADHD myself, I know that retrieval practice is especially effective for ADHD students. Short and frequent is the key. Immediate feedback is non-negotiable — the ADHD brain is far more responsive to immediate feedback than delayed rewards. Keep the stakes low.
Have you ever wondered why this matters so much?
Key Takeaways
Re-reading creates the fluency illusion. Retrieval practice builds genuine long-term memory. Brain dump, low-stakes quizzing, flashcards, fill-in-the-blank, concept mapping, pair quizzing, exit tickets. Weave these seven techniques into your teaching.
References:
Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning. Psychological Science, 17(3), 249–255.
Dunlosky, J., et al. (2013). Improving students’ learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4–58.
Karpicke, J. D. (2012). Retrieval-based learning. Current Directions in Psychological Science, 21(3), 157–163. [1]
Read more: Evidence-Based Teaching Guide
Last updated: 2026-04-17
About the Author
Written by the Rational Growth editorial team. Our health and psychology content is informed by peer-reviewed research, clinical guidelines, and real-world experience. We follow strict editorial standards and cite primary sources throughout.
Disclaimer: This article is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any questions about a medical condition.
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