Definition: Something that simulates a system or environment in order to predict actual behaviour.

Alright class, settle down, let’s take a look! That word "simulation," it’s quite a trick, A clever concept, quick and slick. The dictionary gave you the gist, you see, "Something that simulates a system, for you and me." Let's break it down with a little rhyme, To make this meaning truly shine! Simulation means to copy with care, Like practicing a dance, beyond compare. It’s building a model, small or grand, Of something real, across the land - Or even in space, you understand? Think of it like this: if you want to know, How a roller coaster will go, oh no! You don't just ride it, that would be bold, But build a computer model, story told. It mimics how things actually behave, Predicting outcomes, we believe! So simulations help us plan and see, What might happen – wonderfully! Do you have any questions about this idea? Is there anything you’d like me to explain further?