When creating a design make sure all the working parts are visible and preferably. accessible. Example, when making a remote control car, do not hide the motors and wires. Make sure they are exposed so students cans see how the car moves.
Demonstrating how things work is a vital part of STEAM projects because it helps children move beyond memorization to true understanding. When kids can see the cause-and-effect relationships behind scientific principles, engineering mechanisms, or coding logic, they begin to grasp the “why” behind the “what.” Visual explanations and hands-on experiments make abstract concepts more concrete, encouraging curiosity and critical thinking. Whether it’s watching a circuit light up or seeing a chemical reaction in real time, these demonstrations spark interest and deepen comprehension. Showing how things work also empowers children to ask questions, test ideas, and build confidence in their ability to explore and innovate.