PUZZLING EFFECT: In a new study published in Developmental Psychology, researchers at the University of Chicago found that children playing with puzzles between ages 2-4, performed better at shape translation and rotation tasks when assessed at 54 months. According to the university press release, "the ability to mentally transform shapes is an important predictor of STEM course-taking, degrees and careers in older children." It's important to note that the puzzle activities in the study included parent-interaction but even so it can't hurt to add plenty of puzzles to your Pre-K class or daycare. Low-cost, easy-to-use, and grounded in research. That's good edtech!