10.07 Using maps
Are you ready?
Let's review how to use a grid to describe a position.
Examples
Example 1
What is the location of the carrots?
We label our grid using letters, across the top or bottom, and numbers down the sides. Our grid reference starts with the letter first, then the number.
Find objects on a map
Let's see how to interpret coordinate grid references to locate an object on a map, and also how to write coordinate grid references to describe a position. We look at a map of Tokyo, a city in Asia.
Examples
Example 2
What are the grid coordinates for Tarrin?
The coordinate grid reference tells us how to find things on a map, or how to describe a location on a map. We always start with the letter, then the number. The scale on a map tells us how far something is in real life, and can be different on different maps.
Grid references
Now we look at a country map in Australia, and see how it differs to a map of a city.
Examples
Example 3
This is a map of where Brad and Edward live. The side of a small square on the map represents 100 m.
Brad is on the corner of Top Lane and Mountain Way (map reference \text{C}1). He walks 200 metres along Top Lane to Edward's house. What is the map reference of Edward's house?
The grid reference tells us how to find things on a map, or how to describe a location on a map. We always start with the letter, then the number. The scale on a map tells us how far something is in real life, and can be different on different maps.