ELI5: Explain Like I'm 5

Grid reference

Have you ever seen a big map? If you look very closely at it, you'll see that it has lots of little boxes, called grids, that are filled with tiny squares. Each of these squares has a unique number or letter combination that tells you where you are on the map. This is called a grid reference.

Think of it like this - Imagine you are playing a game of hide and seek in a giant playground that has been divided into many sections with lines. Each section has a number and a letter associated with it. If you hide in one of these sections, your friend can tell where you are by calling out the letter and number that belongs to the section where you are.

In the same way, when you use a map with grid reference, you can use the combination of numbers or letters provided to tell someone exactly where you are on the map. This helps people find their way or locate a particular place easily.

So, next time you use a map, just remember to use the grid reference and you'll always know where you are on the map.