At this age, building meltdowns often happen when cognitive load and emotional load stack on top of each other: a hard task plus a frustrating moment plus a tired body equals a system approaching its limit. Kids this age are developing emotional awareness but still cannot always name what is happening before it tips. Watch for the early physical signals: clenched jaw, short answers, tears just under the surface. When building states are frequent, run the Choice, Connection, Competence check: does your child have enough genuine say in their day? Is the connection between you warm? And are the demands within their current capacity?
Something is building, I can see it. Let's pause before it gets bigger.