“One implication of this pattern of results is that as an instructor designs their instructional materials, they should be asking themselves whether they are trying to optimize their students’ demonstrated mastery of the material itself or their ability to transfer their understanding to new materials. . . .
Simply adding richer meaningful content to in-class examples may make intuitive sense, and may have immediately obvious benefits in terms of student engagement and comprehension. But as the results of our experiments make clear, these short-term benefits seem to come at the cost of students’ long-term ability to apply their knowledge. If educators are to take advantage of these inherent benefits, they will need to give careful consideration to how such examples are designed and used together in order to plan the most effective instruction.”
—Samuel Day, Benjamin Motz, and Robert Goldstone, “The Cognitive Costs of Context: The Effects of Concreteness and Immersiveness in Instructional Examples” on frontiers in Psychology (H/T Greg Ashman)