Lesson 22 — Activity 1: Distance on a Local Map
In this activity, you will learn how to measure distances on a town map. Then, using the scale that you are given, you will be able to calculate how far it is from one place to another.
Think about This:
You will use the same town map that you used in L21 — A1. You will also need a ruler for this activity, which you will use to measure distances on your map.
Look at the town map once again below.
Courtesy of ADLC
Notice the dotted lines on all of the roads and avenues. You will measure these lines with your ruler so that you can calculate the distances between places within this town.
Click here to download and print this map.
For example, let's calculate the distance from the church to the ball diamond parking lot if we go on Highway 24.
Use your ruler to measure from the church out to the line on 4th Street. Then continue measuring over to the ball diamond parking lot. You should get these numbers:
0.8 cm from the church to 4th Street
2.0 cm up to Highway 24
7.0 cm to 5th Street on Highway 24
6.5 cm from 5th Street to 6th Street on Highway 24
1.6 cm down 6th Street to the turn into the parking lot
0.4 cm into the parking lot
Add all of the distances up:
0.8 + 2.0 + 7.0 + 6.5 + 1.6 + 0.4 = 18.3 cm
If we use a scale of 1 cm = 10 metres, we can calculate the actual distance to be:
18.3 x 10 = 183 m
Were you able to get the same measurements as above? If not, do you see where you went wrong? It is very important to be precise when you are measuring on a map. If you are not precise, the actual distance will be off.
This can be very important in everyday life. Let's say you have a blueprint of your
and have to figure out how many cement blocks you need to buy for that distance.
Courtesy of Pixabay
If you are not precise, you might either buy too many and not be able to return them to the store, or you may buy too few and have to take the time to go back to the store to pick up some more blocks.