Fun times in Geometry right?
In the past I've done the Triangle Inequality Theorem with pipe cleaners and straws. Pipe cleaners = fail because student just bend them to make a triangle. Straws didn't work because 1) students cut them and 2) they are too wide.
I came up with bright idea of wooden skewers and did you know that in February I had to go to 4 different stores to find any? Random.
I used Sharpies to color code the different lengths and needle nose pliers >>>> scissors.
I modified Mrs. Hester's INB page Creating Triangles to fit my lengths since she used AngLegs.
I gave students a post-it and asked them to measure each color first.
Then they arrange and filled in the chart.
A problem I always have is when the a + b equals the c. For example, the 2 inch, 3 inch, and 5 inch sticks. I always have half of the class argue that they make a triangle and half that say they do not. I even showed them how they fold down and make a straight line but some were still not convinced. So it ended up with me telling them this is the way it is even though their experience told them different.
Any suggestions? I guess I can attribute it to my lack of cutting skills and order some AngLegs for next year,