“Active learning” describes everything from a two-minute pair discussion to a full problem-based curriculum, which makes the evidence easy to misread. The overall case is strong: in a meta-analysis of 225 studies of undergraduate science, engineering and mathematics courses, Freeman et al. (2014) found that exam performance improved by almost half a standard deviation under active learning, and that failure rates were 55% higher under traditional lecturing. The techniques with the most consistent support share a few design features.
Retrieval beats re-reading
Dunlosky et al. (2013) reviewed ten common learning techniques. Practice testing and spacing practice over time received the highest utility ratings, while re-reading and highlighting were rated low. Short, low-stakes retrieval at the start or end of each session is one of the simplest changes a lecturer can make.
Peer discussion works, especially on hard questions
Smith et al. (2009) showed that after discussing a concept question with peers, students did better on a new question about the same concept, even when no one in the group had known the answer at first. The gains were largest for the hardest questions, so discussion prompts should be difficult enough to produce disagreement.
Give feedback students can act on
Hattie and Timperley (2007) found feedback to be one of the most powerful influences on learning, but its effect depends on the kind of feedback given. Feedback about the task and how to improve helps far more than praise. Frequent low-stakes checks give students information while they can still use it.
Prepare students for the effort
In randomised physics classes at Harvard, Deslauriers et al. (2019) found that students learned more from active learning but felt they had learned less, because the extra effort felt like confusion. Explaining this to students early protects engagement.
The common failure mode
Programmes that add active techniques without changing assessment often see engagement rise while results stay flat, because examinations still reward memorisation. Lasting gains require assessment to change alongside the classroom.
Active learning also narrows achievement gaps
The benefit is not spread evenly, and that is good news. Theobald et al. (2020) analysed data from dozens of studies and found that active learning reduced the gap in exam scores and pass rates between under-represented and other students, with the largest reductions in classes that used active learning for a substantial share of class time. For universities with diverse intakes or widening-participation goals, a classroom redesign is also an equity strategy.
A one-week plan to try these methods in any course
None of these techniques needs new technology or a full course redesign. A lecturer can trial them in a single week:
- Open with retrieval. Start each session with three short questions on last week’s material, answered from memory. Testing improves long-term retention more than re-studying, even without feedback (Roediger & Karpicke, 2006).
- Run one peer-instruction cycle. Pose a hard conceptual question, collect individual answers, ask students to convince a neighbour, then re-poll. Crouch and Mazur (2001) report ten years of consistent learning gains from this cycle in introductory physics.
- Close with a one-minute paper. Ask what was clearest and what is still confusing, then open the next session by addressing the most common confusion.
- Return feedback within a week. Comments on the task and the next step are what make feedback useful (Hattie & Timperley, 2007).
How to tell whether it is working
Engagement is easy to see but is not the same as learning. Compare results on the same type of question before and after the change, track the proportion of students failing or withdrawing, and look at the quality of student explanations, not only their final answers. Four to six weeks of data from one course is usually enough to decide whether to extend the approach to a whole programme, which is the logic behind a focused pilot.
Frequently asked questions
What is active learning in higher education?
Active learning is any teaching approach that asks students to do something with new material during class, such as answering questions, solving problems, discussing ideas with peers or explaining their reasoning, rather than only listening to a lecture.
Which active learning methods have the strongest evidence?
Retrieval practice (frequent low-stakes testing), spaced practice, peer discussion of challenging conceptual questions and timely, task-focused feedback have the most consistent support in large reviews and controlled studies.
Does active learning work in large classes?
Yes. Many of the studies behind the evidence, including peer instruction research, were run in large introductory courses. Short retrieval questions, polling and structured pair discussion scale to hundreds of students without extra staff.
References
- Freeman, S., Eddy, S. L., McDonough, M., Smith, M. K., Okoroafor, N., Jordt, H., & Wenderoth, M. P. (2014). Active learning increases student performance in science, engineering, and mathematics. Proceedings of the National Academy of Sciences, 111(23), 8410-8415. doi:10.1073/pnas.1319030111
- 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. doi:10.1177/1529100612453266
- Smith, M. K., Wood, W. B., Adams, W. K., Wieman, C., Knight, J. K., Guild, N., & Su, T. T. (2009). Why peer discussion improves student performance on in-class concept questions. Science, 323(5910), 122-124. doi:10.1126/science.1165919
- Hattie, J., & Timperley, H. (2007). The power of feedback. Review of Educational Research, 77(1), 81-112. doi:10.3102/003465430298487
- Deslauriers, L., McCarty, L. S., Miller, K., Callaghan, K., & Kestin, G. (2019). Measuring actual learning versus feeling of learning in response to being actively engaged in the classroom. Proceedings of the National Academy of Sciences, 116(39), 19251-19257. doi:10.1073/pnas.1821936116
- Theobald, E. J., Hill, M. J., Tran, E., et al. (2020). Active learning narrows achievement gaps for underrepresented students in undergraduate science, technology, engineering, and math. Proceedings of the National Academy of Sciences, 117(12), 6476-6483. doi:10.1073/pnas.1916903117
- Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249-255. doi:10.1111/j.1467-9280.2006.01693.x
- Crouch, C. H., & Mazur, E. (2001). Peer Instruction: Ten years of experience and results. American Journal of Physics, 69(9), 970-977. doi:10.1119/1.1374249