AN AUTHORITATIVE STUDY OF TWO HIGH-IMPACT LEARNING STRATEGIES

Edutopia

Spacing and retrieval practices are two of the most effective ways to drive long-term retention, confirms an authoritative 2022 review spanning hundreds of studies on the topic—and students should know how and why the strategies are effective.

In the review, researchers explain that students who prefer techniques like reading and rereading material in intense cram sessions are bound to fail. Instead, students should think of learning as a kind of “fitness routine” during which they practice recalling the material from memory and space out their learning sessions over time. Teaching kids to self-quiz or summarize from memory—and then try it again—is the crucial first step in disabusing students of their “false beliefs about learning.”

The effect sizes are hard to ignore. In a 2015 study, for example, third-grade students who studied a lesson about the sun and then reread the same material scored 53 percent on a follow-up test, the equivalent of a failing grade, while their peers who studied it once and then answered practice questions breezed by with an 87 percent score. And in a 2021 study, middle school students who solved a dozen math problems spread out across three weeks scored 21 percentage points higher on a follow-up math test than students who solved all 12 problems on the same day.