If you’ve ever stood in a classroom on a day when a massive storm is brewing, you know the feeling. There’s a kind of static in the air. Kids are vibrating at a different frequency. A pencil drop triggers a meltdown. A simple direction leads to a total shutdown. Adults usually shrug it off as “the full moon” or “one of those days.” But it’s not random, and it’s not imaginary. What we’re witnessing is a biological event unfolding in real time. For elementary-aged children, beh