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02-01-2010, 04:16 PM
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Cohort
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Join Date: Apr 2005
Posts: 510
United States
3rd Grade Teacher
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Types of Triangles
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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02-01-2010, 06:47 PM
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Multitudinous
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Join Date: Sep 2001
Posts: 17,700
New Jersey
Grade 3
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Scalene- ne stands for not equal
Isosceles-2 e's in the word, 2 equal sides
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02-01-2010, 06:48 PM
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Multitudinous
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Join Date: Apr 2006
Posts: 25,824
NEW YORK
Math teacher
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I've never used this, but it just occurred to me:
We have TWO Eyes-- so ISosceles is two!
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02-01-2010, 07:32 PM
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Multitudinous
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Join Date: Sep 2001
Posts: 17,700
New Jersey
Grade 3
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Quote:
Originally Posted by Aliceacc
I've never used this, but it just occurred to me:
We have TWO Eyes-- so ISosceles is two!
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Love it!!
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02-01-2010, 10:01 PM
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Moderator
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Join Date: Aug 2002
Posts: 14,999
Florida
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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.
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02-02-2010, 06:38 PM
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Cohort
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Join Date: Apr 2005
Posts: 510
United States
3rd Grade Teacher
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Thanks! I will use these tricks tomorrow.
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02-02-2010, 11:03 PM
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Cohort
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Join Date: Nov 2008
Posts: 728
Looking for work
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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.
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02-03-2010, 03:12 AM
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Comrade
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Join Date: Jul 2009
Posts: 283
Florida
1st Grade Teacher
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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.
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02-03-2010, 08:34 PM
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Novice
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Join Date: Jul 2008
Posts: 56
Pennsylvania
2nd Grade Teacher
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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.
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02-03-2010, 08:36 PM
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Comrade
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Join Date: Jul 2005
Posts: 360
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I use the 2 eyes trick. My kids never forget it!
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