Types of Triangles

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

1. DeeenaCohort

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Feb 1, 2010

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.

3. czaczaMultitudinous

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Feb 1, 2010

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

4. AliceaccMultitudinous

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Feb 1, 2010

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

We have TWO Eyes-- so ISosceles is two!

5. czaczaMultitudinous

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Feb 1, 2010

Love it!!

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Feb 1, 2010

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. DeeenaCohort

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Feb 2, 2010

Thanks! I will use these tricks tomorrow.

8. HeatherYHabitué

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Feb 3, 2010

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.

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Feb 3, 2010

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. cheerfulfifiRookie

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Feb 3, 2010

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.

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Feb 3, 2010

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

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Feb 4, 2010

You all have such great ideas!

13. amakayeEnthusiast

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Feb 4, 2010

I always called it "a-cute little angle" with my 5th graders!

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Feb 4, 2010

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

15. DeeenaCohort

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Feb 4, 2010

I love the straw idea.. thanks, cheerful!

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Feb 4, 2010

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

17. jens3New Member

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Apr 16, 2014

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.

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