Thursday, August 29, 2013

Polygons

What are the different types of polygons?


Have you read this book?  It's a terrific story about a triangle who changes into other polygons.
Want to re-read the book?  Check out this video:


Check out this Brainpop video about polygons!
http://www.brainpop.com/math/geometryandmeasurement/polygons/preview.weml


Here's one of our favorite polygon songs!  Check it out!


Here's the Parallelogram song!  It's a catchy tune!




Also be sure to check out these posts from a class Miss Liefer taught two years ago. They posted more pictures and videos about polygons!

http://www.missliefer.blogspot.com/2011/08/quadrangles.html

http://www.missliefer.blogspot.com/2011/08/polygons.html

FUN FACT:
The word polygon actually come from the Greek words polu (meaning many) and gonia (meaning angle).


We used everyday items (straws and twist ties) to practice geometry




a square is defined as a rectangle with all sides equal in length

a rhombus--a parallelogram with all sides equal in length
(a square is a special type of rhombus)

What can you make with straws and twist-ties?
In math class, the possibilities are endless!

Making quadrilaterals/quadrangles (four-sided polygons) out of straws and twist-ties! 

right angles


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