The question is Explain the following statement scale to a primary student

Step 1: Imagine a huge playground. It's too big to fit on your paper!
We draw a tiny picture of it. This tiny picture uses a scale.

Step 2: Scale tells us how the tiny picture matches the real thing.
Example: Scale $1 : 100$ means
$1~cm on paper = 100~cm real life.$

Step 3: Try it!
Paper distance: $3$ cm.
Real distance:
$3 \times 100 = 300~cm = 3~meters.$

Step 4: Another fun example — toy car!
Real car: $4$ meters long.
Scale $1 : 50$.
Toy car length:
$\frac{4}{50} = 0.08~meters = 8~cm.$

Scale makes big things small so we can see them all!
Scale: 1 cm on paper shows a bigger real size!