# Lesson 20 — Activity 1: Sports and Time

#### Do you spend a lot of the day thinking about time? Keep a list for one day to see how often you ask yourself a question about time.

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#### Everyone, at some point in life, will play a sport that involves time as a factor. This may be as simple as your physical education teacher yelling that you have 5 minutes left and you know you are down one point. This may motivate you to play harder to try to tie the game up.Or, it may be as complicated as representing your city or town in a particular sport and knowing that every second counts when trying to win a game. Just look at the NHL.

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#### Let's look closely at the game of hockey.Each period in hockey is 20 minutes long. In North America, the time clock counts down to zero, while in other parts of the world, it counts up to 20 minutes. We will use the North American clock in our example.

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#### What about the CFL? A football game has four 15-minute quarters. Just like the NHL, the clock starts at 15 minutes and counts down to zero.

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## Try This!

#### Calculate the elapsed time in this sports problem.

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