Radar speed sign

A radar speed sign is a special sign on the side of the road that helps drivers know how fast they are going. It has a radar machine inside that can measure how fast a car is going and then display that number on a big screen. Imagine you are playing a game where you have to hit a target with a ball. You only get points if you hit the target at the right speed. The radar speed sign is like the scorekeeper, telling you how fast you need to throw the ball to win points. The sign wants you to drive at a safe speed, like using an inside voice in a quiet classroom or walking instead of running in a crowded space. It helps keep everyone happy and safe on the road.