The radical exemplar model resonates with work on perceptual classification and categorization highlighting the role of exemplars in memory representations. Further development of the model requires acknowledgment of both the fleeting and fragile nature of perceptual representations and the gist-based, good-enough quality of long-term memory…

In this month's interview, Kappan's editor talks with developmental psychologist and Northwestern University professor Emma K. Adam about her recent research into stress, stress hormones (particularly cortisol), sleep, and learning. High school students' self-reported stress levels during the day are closely aligned with their measured levels of…