How tech companies sold schools on computer-science instruction that hasn’t worked out for many children.

Most wearable tech for kids treats coding like a bonus feature buried in a menu. You get a step counter, a few preset faces, and maybe a drag-and-drop tutorial that feels like an afterthought.

Have you ever wondered how your family’s favorite video games or apps are made? At first, coding might sound like something for teens or grown-ups, but it’s actually a simple and exciting way to ...