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CCSS.Math:

let's talk a little bit about the US customary units of weight so the one that's most typically used is the pound especially for things that kind of a human scale and to understand what a pound is most playing balls are roughly about a pound so for example a soccer ball my best attempt to draw a soccer ball so let's say that this is a soccer ball right over here and I'm at and then of course it has some type of pattern on it so you could imagine a soccer ball is about is about a pound so it's roughly one pound and a pound will often have be short-handed with this lb period right over here so it's about a pound a football an American football is also a little under a little under a pound but we could say it is about a pound just so we get a sense of what a pound just so we get a sense of what a pound actually represents now if you want to go to scales smaller than a pound you would think about using the ounce you would think about using the ounce and the relation between the ounce and the pound when we're thinking when we're thinking about weight is that one pound let me write this one pound one pound is equal to 16 ounces is equal to 16 ounces or another way of thinking is that is it thinking about it is that a 1 ounce is equal to 1/16 of a pound and if you want to visualize things that weigh about an ounce you could imagine a small box of matches weigh about an ounce so a small box of matches might weigh about an ounce maybe a a small double-a battery would a would weigh about an ounce but that gives you a sense of it so if you were to take 16 of these together there'd be um there would be about the weight of a soccer ball 16 of these things together there would be about they'd be about the weight of a soccer ball or a football now if we want to think about weights that are larger than a pound then we would go to the we would go to the ton and a ton is equal to one ton is equal to 2,000 2,000 pounds and you have to be a little bit careful with the ton we're talking about the US customary units and this is where we're talking about 2,000 pounds but when we're talking on a more international level this is sometimes called the short ton there's also a long time there's also the metric ton but here we're talking about US customary units which is the short ton so one ton is 2,000 pounds and to get a sense of something that weighs 2,000 pounds or to get a sense of what 2,000 pounds is like or what by what might be measured in tons a car is a good example your average midsize sedan your average midsize sedan would weigh about a little under - a little over two tons so a little under - a little over - a little over 4,000 pounds if we're talking about a small van or minivans or vans or trucks we're thinking it we're going to is going to be larger than two tonnes and if you think about smaller cars you're thinking it's going to be probably around 3,000 pounds so it's going to be less than two tonnes so a car a car is a car is going to be approximately - two tonnes so hopefully that gives you a sense of how what units you'd use in the US customary system for different scales of weights