If you look at a map you will see many towns located next to a river. Rivers provide water to drink, water to grow food, and transportation.
Do you ever wonder which river is the longest?

Number a piece of paper from 1 to 6. Answer #1 before continuing.

1. How long do you think the longest river is?

Write your estimate before you look it up.

The site below lists the world's longest rivers.

Lengths of Major Rivers

Using the Excel file at:

Mrs. Amatangelo's Page
> Subjects > Math > Lengths of Major Rivers

Compare the lengths of the rivers. Write your answers to the following questions:

2. Which is the maximum length (longest)?

3. Which is the minimum length (shortest)?

4. What is the range? (the longest minus the shortest)

5. What is the mode? (the length that occurs most often)

6. What is the median? (To find the middle length, pair the top and the bottom number, then the next top and next bottom, then the third top and the third bottom > etc. until you find the middle number)