Lesson 8

1. Lesson 8

1.2. Discover

Mathematics 20-2 M2 Lesson 8

Module 2: Logic and Geometry

 
Discover
 

Think about some items in your everyday life that contain parallel lines. How would the look of these items change if the lines were not quite parallel? Think about your favourite pair of striped socks, a referee’s shirt, or the Canadian flag. The overall look and appeal of these items would change if the lines in their design were not parallel.

 

This photo is of a hockey referee in a rink.

Photos.com/Thinkstock

This photo is of striped socks.

Hemera/GettyImages/Thinkstock


This photo is of the Canadian flag at Canmore Nordic Centre in Canmore.

Alberta Economic Development

 



This is true for designs on a larger scale as well. For instance, when designing a corn maze, it is important that the lines of the maze are parallel to each other. If the lines are not parallel, the paths may cross over each other at some point. This has the potential to change the desired path of the maze. Think about how this also relates to the lines on roads. It would not be very safe if the width of the lanes kept changing because the centre yellow line was not parallel to the outside white lines.

 

Left photo: This illustration is children walking through the Lacombe Corn Maze. Right photo: This illustration is a car on a highway in central Alberta.

Alberta Economic Development