We’ve all crammed before an exam, only to forget most of it days later. The same problem happens in workplace learning when information is delivered once and never revisited, retention drops fast. That’s where spaced learning comes in. By revisiting key ideas over time and prompting learners to actively recall them, you can transform one-off training into lasting knowledge.
Research consistently shows that spacing learning over time improves long-term retention compared with completing all learning in a single session.
Our top tips
Break content into digestible pieces
Instead of long modules, use short bursts of learning (5–10 minutes). Learners can revisit these later without being overwhelmed, reducing cognitive load. For example, a compliance course could deliver five-minute lessons on individual topics like data privacy, reporting breaches, and secure passwords, rather than a single one-hour module or training session.
Space out review opportunities
Send reminders or follow-up activities days or weeks after initial training. Research shows that optimal spacing strengthens memory by forcing the brain to work a little harder to retrieve information. For example, after a cybersecurity training session, send learners a short follow-up activity two days later that asks them to identify signs of a phishing email.
Use retrieval practice, not just re-reading
Rather than sending learners back to review slides, prompt them with a quiz question, scenario, or reflection. The act of recalling information, even with some struggle, improves retention far more than re-exposure. For example, instead of asking learners to re-read the company’s code of conduct, send them a short quiz with realistic dilemmas (e.g., “What would you do if a supplier offered you a gift?”).
Mix it up with varied practice
Change the context slightly when you revisit content. Variety strengthens application skills. For example, after a policy training, the first follow-up could be a short quiz, the next a scenario, and later a case study.
Automate reinforcement nudges
Set up your LMS or communication channels to deliver micro-reinforcement automatically short reminders, challenges, or knowledge checks. This keeps learning alive without relying on manual effort. For example, send a weekly email with a one-question scenario or a short video tip that reminds learners of key principles.
Connect spacing to real work
Encourage learners to apply a concept on the job and share back what they did. This reflection acts as spaced reinforcement while embedding knowledge in experience. For example, for a leadership course, prompt learners to apply one coaching technique during their next team meeting, then reflect on the outcome in an online discussion board.
Spaced learning isn’t about adding more content; it’s about delivering the right content at the right time. By combining micro-learning, retrieval practice, and smart scheduling, you’ll help knowledge stick long after the course ends. The key is to align the format with the purpose of your content, and not to assume one is always better than the other.
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. https://doi.org/10.1037/0033-2909.132.3.354
Cepeda, N. J., Vul, E., Rohrer, D., Wixted, J. T., & Pashler, H. (2008). Spacing effects in learning: A temporal ridgeline of optimal retention. Psychological Science, 19(11), 1095–1102. https://doi.org/10.1111/j.1467-9280.2008.02209.x
Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving students’ learning with effective learning techniques: Promising directions from cognitive and educational psychology. Psychological Science in the Public Interest, 14(1), 4–58. https://doi.org/10.1177/1529100612453266
Kang, S. H. K. (2016). Spaced repetition promotes efficient and effective learning: Policy implications for instruction. Policy Insights from the Behavioral and Brain Sciences, 3(1), 12–19. https://doi.org/10.1177/2372732215624708
Roediger, H. L., III, & Butler, A. C. (2011). The critical role of retrieval practice in long-term retention. Trends in Cognitive Sciences, 15(1), 20–27. https://doi.org/10.1016/j.tics.2010.09.003
