What Are Teaching Strategies? 20 Evidence-Based Techniques for K-12 Teachers

Not every strategy you use in the classroom is created equal. Some have decades of research behind them and proven impact on student learning. Others feel productive but don't move the needle much. Teaching strategies are the methods and approaches teachers use to help students learn, and knowing which ones actually work can transform what happens in your classroom.

Teaching strategies are deliberate instructional methods used to support student learning. Evidence-based teaching strategies, grounded in decades of research, consistently outperform intuition-based approaches. Key high-impact strategies include formative feedback, retrieval practice, spaced practice, cooperative learning, teacher clarity, and metacognition. John Hattie's Visible Learning meta-analysis synthesizes more than 800 studies to show which strategies deliver the highest effect on student outcomes.

This guide covers 20 evidence-based teaching strategies, ranked where possible by research impact, with grade-level examples and quick-start implementation steps so you can begin using them this week.

What are teaching strategies?

Teaching strategies are the methods, techniques, and approaches teachers use to help students acquire knowledge, build skills, and retain what they learn. The term is sometimes used interchangeably with "instructional strategies", both refer to the deliberate choices teachers make about how to deliver content.

The distinction between a teaching strategy and a teaching method is subtle but useful: methods are broader approaches (direct instruction, inquiry-based learning), while strategies are specific techniques within those approaches (think-pair-share, exit tickets, cold calling with no-opt-out).

What makes a strategy evidence-based? It means the technique has been tested in research and consistently shown to improve learning outcomes across multiple studies. Hattie (2012) quantifies this using effect sizes, a measure of how much a strategy improves student achievement compared to no intervention. The benchmark for "above average" impact is an effect size of 0.40. Many popular techniques fall below this threshold; the 20 strategies in this guide all meet or exceed it.

The 10 highest-impact teaching strategies (according to research)

These strategies appear consistently at the top of large-scale research syntheses, including Hattie's Visible Learning and Dunlosky et al.'s influential 2013 review of learning techniques.

Quick reference: top strategies at a glance

1. Formative feedback (effect size: 0.90)

Formative feedback, providing students with timely, specific information about their learning, is one of the highest-leverage strategies a teacher can use. Research from Hattie (2012) shows it has an effect size of 0.90, meaning it nearly doubles the speed of learning compared to instruction without regular feedback.

Effective formative feedback answers three questions for the student: Where am I going? Where am I now? What's the gap between the two? This is different from grading, it's about informing students in real time so they can adjust.

How to implement: End each lesson with one specific question that tells you who understood the objective. Review responses before the next class and address the most common misconceptions immediately.

2. Teacher clarity (effect size: 0.75)

When students know exactly what they're supposed to learn, and why, they learn it faster. Hattie calls this "visible learning": teachers make learning intentions clear, and success criteria explicit, at the start of every lesson.

This doesn't require elaborate lesson introductions. "Today you'll understand why the American Revolution happened. By the end, you should be able to name three causes and explain one in your own words" takes 30 seconds and dramatically focuses student attention.

3. Metacognition (effect size: 0.69)

Metacognition, students thinking about their own thinking, has a powerful effect on learning. When students can accurately assess their own understanding and adjust their strategies accordingly, their learning becomes self-directed and more efficient.

Simple metacognitive prompts work well: "On a scale of 1-5, how confident are you in this answer and why?" or "What would you do differently next time?"

4. Spaced practice (effect size: 0.60)

Cepeda et al. (2006) analyzed 317 studies and found that distributing practice over time produces 35% better retention at 1-week follow-up compared to massed practice (cramming). Review vocabulary on Monday, revisit it Thursday, and again the following week, students retain far more than students who only studied the content once.

5. Retrieval practice (effect size: 0.55)

Roediger and Karpicke (2006) demonstrated that actively retrieving information from memory, not just re-reading it, strengthens long-term retention by up to 1.5x compared to passive review. Low-stakes quizzes, brain dumps, and flashcards all count as retrieval practice.

6-10. Scaffolding, cooperative learning, peer tutoring, problem-based learning, and direct instruction all have effect sizes between 0.43 and 0.60, each providing meaningful, research-backed impact when implemented well.

10 more effective teaching strategies for your classroom

The following strategies may have slightly lower effect sizes in large-scale research but are highly practical and well-suited to specific instructional contexts.

11. Think-pair-share: Students think independently for 30-60 seconds, discuss with a partner, then share with the class. Doubles student talk time; reduces anxiety around whole-class responses.

12. Exit tickets: A single question at the end of class that tells you whether students grasped the objective. Takes 3 minutes; gives you next-day lesson planning data. Our exit ticket template has 30+ examples by subject.

13. Scaffolding: Providing temporary support (sentence starters, graphic organizers, worked examples) that students gradually remove as they build independence. Critical for students working at multiple levels.

14. Differentiated instruction: Adjusting the content, process, or product of learning to meet students where they are. See our differentiated instruction strategies guide for practical techniques.

15. Inquiry-based learning: Students drive their learning through questions and investigation. Higher effort for teachers to facilitate but builds deep understanding of complex content.

16. Cold calling with no-opt-out: Calling on students who haven't raised their hands, but with scaffolding to ensure success. Increases accountability and equity of student participation.

17. Concept mapping: Students visually organize relationships between ideas. Strong for complex concepts with many interrelated parts (biology, history, literature).

18. Worked examples: Showing students a fully completed example before having them work independently reduces cognitive load and accelerates skill acquisition.

19. Reciprocal teaching: Students take turns leading discussion using four comprehension strategies: summarizing, questioning, clarifying, predicting. Strong for reading comprehension.

20. Jigsaw: Expert groups learn different parts of content, then teach each other. Creates accountability and deepens understanding through teaching. See our cooperative learning strategies guide for implementation.

Teaching strategies by grade level

The most effective teaching strategies work across grade levels, but implementation looks different depending on the age and developmental stage of students.

K-2: Prioritize high-repetition retrieval (choral response, letter and word games), scaffolded questioning, and play-based inquiry. Direct instruction works well when lessons are short (10-15 minutes). Co-operative learning is powerful, pair stronger and emerging readers for partner reading.

Grades 3-5: Exit tickets, think-pair-share, graphic organizers, and cooperative jigsaw all work well. Students at this level benefit from explicit metacognitive prompts: "Before you start, what do you already know about this topic? After, what surprised you?"

Grades 6-8: Retrieval practice via low-stakes quizzes is high leverage. Socratic discussion starts to work well. Problem-based learning and inquiry-based learning fit naturally with science and social studies. Spaced review games (Kahoot, Wayground live quizzes) build in retrieval practice without feeling punitive.

Grades 9-12: Debate, case studies, Socratic seminar, and project-based learning become highly effective. Metacognitive journaling and self-regulation strategies pay dividends for college readiness. Spaced practice for test prep is essential, space review sessions weekly rather than cramming the week before.

How to implement new teaching strategies without burning out

Adding new strategies to a packed teaching day can feel impossible. These principles help teachers build habits sustainably:

Start with one. Choose a single strategy and commit to it for 2-3 weeks. Strategies get easier after 5-7 uses as both you and students develop routines around them.

Explain the why to students. Students who understand why they're doing a brain dump at the start of class or a think-pair-share mid-lesson engage more genuinely with the process.

Measure the effect. After a few weeks with a new strategy, check whether students' formative data is improving. Use exit tickets or a quick quiz to see if retention is better than before. Digital tools like Wayground provide instant class-level data after each live quiz, so you can see within minutes whether a strategy is moving the needle.

Pair one quick win with one deeper strategy. Exit tickets and retrieval practice take little prep and have high impact, use these as your daily foundation. Add a strategy like cooperative learning or scaffolded inquiry once foundations are stable.

Pulling it together

Teaching strategies are most powerful when chosen deliberately, implemented consistently, and evaluated through student data. Here's what to remember:

• •Effect sizes matter, prioritize strategies with the strongest research evidence
• •Start with retrieval practice and formative feedback, low prep, high impact, works everywhere
• •Grade-level context shapes how you implement, not which strategies you use
• •Measure the effect: use brief formative checks to evaluate whether a strategy is working before you've invested months in it
• •Consistency beats novelty, a few well-executed strategies outperform a constantly rotating mix

Try retrieval practice tomorrow: open your next lesson with a 2-minute brain dump, have students write everything they remember about yesterday's content without looking at notes. Review what the class remembers (and what they don't) before moving forward.

To track whether your teaching strategies are working, Wayground's live quiz and exit ticket tools give you class-level formative data in real time, so you can adjust tomorrow's lesson based on today's results, not on a gut feeling.

References

Cepeda, N. J., Pashler, H., Vul, E., Wixted, J. T., & Rohrer, D. (2006). Distributed practice in verbal recall tasks: A review and quantitative synthesis. Psychological Bulletin, 132(3), 354-380.

Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving students' learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4-58.

Hattie, J. (2009). Visible Learning: A Synthesis of Over 800 Meta-Analyses Relating to Achievement. Routledge.

Hattie, J. (2012). Visible Learning for Teachers: Maximizing Impact on Learning. Routledge.

Institute of Education Sciences. (2007). Organizing Instruction and Study to Improve Student Learning. U.S. Department of Education.

Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249-255.

Wiliam, D. (2011). Embedded Formative Assessment. Solution Tree Press.