How do you make more precise instruments while only using less precise instruments?

You can make better tools by using not-so-good tools, just like you can build a stronger tower with blocks that aren’t perfectly shaped.

Imagine you have a ruler that’s only accurate to the nearest inch, it's like a blocky building toy. You want to measure things more precisely, like how tall your favorite stuffed animal is. But instead of giving up, you use your not-so-good ruler to make a better one!

Here’s how:

You take your inch-sized ruler and draw straight lines on a piece of paper, each line as close together as you can manage. Then you measure those lines with your inch-sized ruler and use that to check your new, more precise ruler.

It's like using big, wobbly blocks to stack up smaller, smoother ones, the bigger blocks help you figure out how to make the little ones better.

You don’t need perfect tools at first; you just need enough to start making things even better!