What you are seeing is flow — the state where your child feels their best and is fully engaged. Your child is deep in something they are building, making, or creating, and the required activity is waiting. At this age, deep creative engagement is the brain at its best. Building, drawing, constructing, imagining: these activities are developing fine motor skills, spatial reasoning, narrative thinking, and the capacity for sustained focus that will serve them in every learning context. Interrupting abruptly is a real disruption, not just an inconvenience. The goal is a transition that honors what was happening.
You are building something really interesting. We need to do something else soon. Can you find a stopping spot or save your work?