M2.4.7 For the adult
Which is bigger
Which is more, 1/4 or 1/8, since 8 is bigger than 4?
What this chapter teaches
To compare fractions, picture bars of the same whole. With the same bottom number, more parts is more. With the same top number, a bigger bottom number means smaller parts, so one eighth is less than one quarter.
Three questions to ask
There is no one right wording. Listen for the idea.
- Which is bigger, one quarter or one eighth, and how do you know?
- Why does a bread cut into more pieces give smaller pieces?
- How would you compare three eighths with five eighths?
After the chapter, the learner can
- Compare two fractions with the same bottom number
- Compare two fractions with the same top number
- Explain why 1/8 is less than 1/4
What they copy into their notebook
Compare fractions on bars of the same whole. Same bottom number: more parts is more. Same top number: a bigger bottom number means smaller parts. So 1/8 is less than 1/4.