Trish's Triangle

Here's a photo of an acute isosceles triangle lurking in my backyard.

Melinda's Triangle

The picture is of a tree in my backyard that looks like an upside down Isosceles triangle.

Rebecca's Triangle

The highlighted triangle is isosceles. It may at first appear to be equilateral, but the top side is slightly longer than the others, and the bottom angle is slightly larger than the other two.

Ann's Post

It a picture of an equilateral triangle that also happens to function as a handy highlighter.

Dave's Post

I selected a scalene triangle, almost a right triangle but just a hair off.

Rachel's Post

Here's a picture of La Sagrada Familia in Barcelona. It's an isosceles acute triangle.

How to post your examples

When presenting your pictures, you may describe the geometric shape with words or using an illustration with measurements.

This image of a bike illustrates a right triangle. Angle CAB is a 90 degree angle. The measurements can be viewed below in the paint shop file. I used a ruler and protractor.

Network Based Learning Project

Welcome to our communication headquarters. I am a high school mathematics teacher in the Chicago Suburbs looking for an interactive way to incorporate photography into the study of geometric shapes. The objective of my project asks students to find examples of geometric shapes in their surrounding environment, photograph them, and then using geometric properties explain why the shape is as they classified. For my first attempt at a networking assignment, I wanted to focus on TRIANGLES (scalene, isosceles, equilateral, acute, obtuse, right, and/or equiangular). If my initial attempt is successful I will expand to shapes up to 10 sides later in the school year. If you haven't already done so and are interested in joining this networking project email me at Zeglin@uiuc.edu.

Due to my presentation date, photo submissions needs to be received by July 28th to allow time to publish our findings on a web page that will be available to anyone who is interested.