Definition: A hand-held device consisting of concertinaed material, or slats of material, gathered together at one end, that may be opened out into the shape of a sector of a circle and waved back and forth in order to move air towards oneself and cool oneself.

Alright class, settle down, let’s take a look! That dictionary definition is pretty precise, isn't it? It describes a fan perfectly - a clever little tool designed to keep us cool. Let's break it down with a rhyme: “A fan’s a friend, when the heat descends, With slats and folds, it cleverly lends A breath of air, a cooling grace, To chase away the warmth from your face!” Essentially, a fan is made up of parts that can be opened up – like a little sector of a circle - and when you move them back and forth, they push air. Think of it like blowing on hot soup to cool it down! It's used for everything from concerts (as the definition mentions) to picnics in the sun, or even just feeling a bit stuffy during class. 😊 Do you have any questions about what we’ve covered so far?