lesson

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Could you fit a real airplane, a whole house, or your entire school onto one sheet of paper?
Of course not! Real buildings and vehicles are way too big to carry in your hands.
To draw giant things on paper, we shrink them down using scale, which means making every single part smaller by the exact same amount.
๐Interactive diagram
What would happen if you shrank a car, but forgot to shrink its wheels?
Keeping the Right Shape
When we make a miniature model, every part must shrink together so the shape stays true.
If you shrink the car's body but leave giant wheels, the toy car looks silly and cannot roll properly.
๐Interactive diagram
Toy cars are fun, but how do builders use this idea before building a real house?
Blueprints for Builders
Builders cannot build a house by guessing where the walls go.
They look at a special drawing called a blueprint, which shows the entire room shrunk down neatly onto paper.