Types of Triangles

Discussion in 'Elementary Education' started by Deeena, Feb 1, 2010.

  1. Deeena

    Deeena Cohort

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    Does anyone have any good "tricks" to help the kids remember the difference between an equilateral, scalene, and isosceles triangle? My kids get equilateral because it has the word "equil" in it, but they're having trouble with the other two. We have done songs, poems, practice, but some are still having trouble identifying.
     
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  3. czacza

    czacza Multitudinous

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    Scalene- ne stands for not equal
    Isosceles-2 e's in the word, 2 equal sides
     
  4. Aliceacc

    Aliceacc Multitudinous

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    I've never used this, but it just occurred to me:

    We have TWO Eyes-- so ISosceles is two!
     
  5. czacza

    czacza Multitudinous

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    Love it!!
     
  6. Upsadaisy

    Upsadaisy Moderator

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    Also, isosceles has SOS - side/other/side. Two sides the same length.

    And scalene - like scale. Each step is different, each side is different.
     
  7. Deeena

    Deeena Cohort

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    Thanks! I will use these tricks tomorrow.
     
  8. HeatherY

    HeatherY Habitué

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    Maybe you have't reached angles yet, but.....

    Acute- it's a cutie! With the little kid voice. My math teacher in high school did that and I never forgot it. Then he did obtuse in a big man voice. It worked.
     
  9. ms. yi

    ms. yi Comrade

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    Register for studyjams.com through scholastic. It says you have to pick a plan but it's actually an unlimited free trial. They have a song on the different types of triangles.
     
  10. cheerfulfifi

    cheerfulfifi Rookie

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    I once did a lesson where we created triangles with straws and twist ties (to connect the ends). They had to cut up the different lengths of the straws to see the difference between the different types.

    This may help for those who need a hands on visual.
     
  11. cmorris

    cmorris Comrade

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    I use the 2 eyes trick. My kids never forget it!
     
  12. Ross

    Ross Comrade

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    You all have such great ideas!
     
  13. amakaye

    amakaye Enthusiast

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    I always called it "a-cute little angle" with my 5th graders! :)
     
  14. Upsadaisy

    Upsadaisy Moderator

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    Me, too. In a sappy voice. They all started saying it along with me after a while.
     
  15. Deeena

    Deeena Cohort

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    I love the straw idea.. thanks, cheerful!
     
  16. Upsadaisy

    Upsadaisy Moderator

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    Gluing popsicle sticks works well, too. You can also place a couple of pushpins on cardboard and have kids create triangles with yarn.
     
  17. jens3

    jens3 New Member

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    Triangle Trick

    I use the equal trick too. For isosceles we use "I saw two sides the same." I don't have anything for Scalene.
     
  18. Special-t

    Special-t Enthusiast

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    Brilliant!
     

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