Lesson

Let's review how to use a grid to describe a position.

What is the location of the carrots?

Worked Solution

Idea summary

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.

Let's see how to interpret grid references to locate an object on a map, and also how to write grid references to describe a position. We look at a map of Tokyo, a city in Asia.

What are the grid coordinates for Tarrin?

A

\text{B}2

B

\text{G}2

C

\text{D}4

Worked Solution

Idea summary

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.

Now we look at a country map in Australia, and see how it differs to a map of a city.

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?

A

\text{E}5

B

\text{E}2

C

\text{D}3

Worked Solution

Idea summary

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.

locates and describes position on maps using a grid-reference system