When a fraction changes into another, equivalent fraction, it’s almost as if the fraction has donned a disguise. As I was thinking about this, I realized that this presents a fantastic opportunity to include writing in math.

Students will write a story about how one fraction has to disguise itself to fit in with a group of unlike fractions.

Perhaps 1/2 wants to:

- fit in with some
*cool*16ths at Fraction High School - study the mysterious 10ths in their wild, jungle habitat
- go undercover and spy on the Evil Eighths

Now we can write a story about how 1/2 would disguise itself. Perhaps it has an 8/8 machine it can use to transform into 8/16ths? What will happen at Fraction High, now that 1/2 is dressed as a 16th?

Why I love this. Once a kid can calculate equivalent fractions, there’s no reason for them to just keep practicing it. They’ve got it! Instead, we want to push them up Bloom’s Taxonomy; move them onto something that will get their brain moving in new ways; surprise them with an unexpected way of thinking.

Have six kids do this and you’ll get six totally different ideas. You’ll get *actually interesting thinking*. Sure you could make it a simple paragraph, but I bet you’ll have students ask if they could make a skit, a children’s book, or a green-screened video.

Want a fully-finished version of this lesson? I created it over at Byrdseed.TV.