# World Temperatures (Investigation)

Lesson

## Objectives

• To practise with finding direct numbers in real life.
• To practise with ordering integers.
• To practise with placement on a number line.

## Materials

• Internet
• Construction paper
• Crayons or Markers

## Procedure

Work on your own or in small groups.

1. Go to this website to look up the average temperature per month of any city in the world. View the temperatures in Celsius. Pick three cities and research their average monthly temperatures.
2. Use one piece of construction paper and crayons or markers to draw 3 tables - one showing monthly temperatures for each city. Use these tables to record the data you found.

Example of How to Set up Tables

#### Follow-Up Questions

Use the data you found to answer these questions.

1. For each city list the average monthly temperatures from least to greatest.
2. Which city reaches the highest temperature?
3. Which city reaches the lowest temperature?
4. Compare with a friend! Did they have a city that reached a higher temperature than any of your cities? Did they have a city that reached a lower temperature than any of your cities? Explain.
5. Pick one of the cities you researched and make a number line large enough to fit all of the average monthly temperatures for that city. Then, circle the temperatures for each month on the number line.
6. What is the difference between the hottest and the coldest month of the city you chose?
7. Write the amount the temperature decreases between the hottest and coolest month as a direct number.
8. Compare the direct number you found in question 7 with your friend! Is their number greater or smaller than yours? What does this tell you about your cities?