Mario Ruiz
Imagine a city where the city blocks were a perfect grid. If you wanted to take a taxi from Point A to Point B. How many blocks is that?
Draw in a few routes. For example draw the shortest route or the longest route.

How many different routes could you take?

Assuming you are on a taxi and you can only stay on the street. What is the shortest distance from point A to point B?

This is called TaxiCab geometry because we are assuming you have to stay on the roads to get from one place to another.