Make an organised list
What Is It?
Make a List is a problem-solving strategy that you can use to solve mathematical word problems by writing the information in a more organised format. Here is an example of a problem that can be solved by making a list:
Doug has 2 pairs of pants: a black pair and a green pair. He has 4 shirts: a white shirt, a red shirt, a grey shirt, and a striped shirt. How many different outfits can he put together?
UNDERSTANDING THE PROBLEM
- How many pairs of pants does Doug have? (2)
- How many shirts does Doug have? (4)
PLANNING A SOLUTION
- Suppose Doug wears his black pants. What colour shirt can he wear? (white, red, grey, or striped)
- If Doug wears his striped shirt, how many different outfits can he wear? (2: striped—black and striped—green)
- If Doug wears the green pants, can he wear all 4 shirts? (yes).
Finding the Answer
Make an Organised List
Black—White
Black—Red
Black—Grey
Black—Striped
Green—White
Green—Red
Green—Grey
Green—Striped
Answer: Doug can make 8 different outfits.
No comments:
Post a Comment