Showing posts with label Irregular Shapes. Show all posts
Showing posts with label Irregular Shapes. Show all posts

Tuesday, May 24, 2011

Teaching Area of Irregular Shapes Using Architecture

I love looking at architecture. There's something so therapeutic about the symmetry. 

In this exercise your goal as the educator is to get students thinking about how to take an area of an irregular shape. The shapes that you will use are extremely advanced



So the goal is not for your students to take exact areas but to develop the thought process of how to approach such a problem.

Tell your students that they need to know how much paint to buy to paint the front of this house. How can they figure out the area? Print out the picture and have them spot as many regular shapes as possible in the picture, like so


From here we could get a close approximation of the area of the front of the house if we knew the measurements. 


Thursday, April 7, 2011

Finding Area of Irregular Figures With Rubber Band Shapes

Teaching Area of Irregular Shapes Can Be Confusing For Students 




So, give them a ruler and some Rubber bands with shapes and let have some fun. The goal is not to present them with a testable question so much as to present them with a difficult question to which they must use known concepts. 



Be sure to ask them what strategy they used----->A teenagers mind is amazing!


Possible thoughts of a teenage mind --"Well, that tail on the fish thingy kind of looks like a triangle and his body is like a circle i guess"--