Sanity check

A sanity check is like when you are doing something and you stop for a moment to make sure you're doing it right. For example, imagine you are putting a puzzle together. After you fit a few pieces into the puzzle, you might stop for a moment and look at the picture on the box to make sure you are putting the pieces in the right place. That's a sanity check!

Sanity checks can also be used in other situations, not just with puzzles. They can be used in lots of things like writing an essay or solving math problems. When you are doing something important, it's always a good idea to take a sanity check to make sure you're doing it right.