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Teaching Fractions: The Tootsie Roll Is the New Pie

theodp writes "Following up on a WSJ story, data visualization author Stephen Few illustrates why using lines or bars may be sweeter than pie when it comes to teaching kids fractions. 'Although the metaphor is easy to grasp (the slices add up to an entire pie),' explains Few, 'we know that visual perception does a poor job of comparing the sizes of slices, which is essential for learning to compare fractions. Learning that one-fifth is larger than one-sixth, which is counter-intuitive in the beginning, becomes further complicated when the individual slices of two pies — one divided into five slices and other into six — look roughly the same. Might it make more sense to use two lines divided into sections instead, which are quite easy to compare when placed near one another?' So, is the Tootsie Roll the new pie?"

6 of 194 comments (clear)

  1. No way by operagost · · Score: 1, Funny

    Hasn't Michelle Obama already banned pies and Tootsie Rolls?

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  2. Only denominators with 9 by Anonymous Coward · · Score: 4, Funny

    There's 9 sections. What happens when you want to teach 1/4s, 1/2s, 16ths ?

    That's why I think a bottle of Scotch is the new pie!

    Now children, let me drink two shots, what fraction of the bottle did I just drink?

    Now children, assume what's left is the whole and I drink another three shots, what fraction is left?

    Now children, write a 1,000 word essay on why whiskey is the best math tutor whle I take a little snap.

  3. Re:Start a classroom war by SJHillman · · Score: 5, Funny

    Anyone who fought over pizza knows that not all 1/8ths are created equal.

  4. Use Democrat logic... by AmazinglySmooth · · Score: 1, Funny

    If we divide people into identity groups, you can truly understand how to put certain groups together! 50% white 50% female ...

  5. Re:Start a classroom war by ohieaux · · Score: 5, Funny

    When asked if he wanted his pizza cut into 4 or six slices: "You better cut the pizza in four pieces because I'm not hungry enough to eat six." - Yogi Berra

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  6. Re:Start a classroom war by sootman · · Score: 1, Funny

    A guy walks into a pizza shop at lunchtime and asks for a personal pizza. The shop is new and wants to make people happy so the guy behind the counter asks "Do you want us to cut that into 4 slices or 6?" The customer thinks for a second and says "Better make it four. I'm not sure I could eat six."

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