Why do this problem?
introduces children to the idea of scale.
How many squares along the top edge of the grid is the point of each ear?
So can you work out where the point will go on a different grid?
How many squares along and down does each eye go?
The questions have deliberately stuck to grids that are in the same proportion as the original grid, but you could ask children how the cat's face would change if, for example, the width stayed the same but the length was halved. This could produce an interesting discussion about why this new cat looks different to ones drawn in a proportionate grid.
You may like to use this sheet
with the grids drawn for you.