What's a pinball machine?

Well, thanks to Youtube, my second grade students now can tell you what a pinball machine looks like. My students love doing STEM projects. Today they created their very own pinball machines. I never show examples because I want to see how creative they can become. As always, I was AMAZED! They built ramps, bumpers, huts, and even a lever to launch the ball. Some of them even labeled with points based on the difficulty of each obstacle. Wow!