Grade
5

Which One Doesn't Belong? Take a Walk

Look at this set of four pictures. Decide which one doesn’t belong with the other three. Use math words to describe your thinking. There are many ways to think about each one!

A: A number line shows that Avery walked 1-half of a mile in 10 minutes. B: A ratio table shows that Banee walked 1-third of a mile in 7 and 1-fourth minutes. C: A ratio table shows that Cameron walked 2-fifths of a mile in 8 minutes. It also shows 1-fifth mile in 4 minutes and shows 1 mile, but not how many minutes. D: A ratio table shows that DeShawn walked 4 miles in 80 minutes.

Challenge

Find reasons why each of the pictures might not belong with the other three.

Share

Explain your thinking to someone else. Do they have different reasons why one doesn't belong?

Printable Version

Google doc for printing and copying

Reference for Educators

Sample problems and solutions