## Triangles and Squares

21 Sep

As we continued work on Geometric Measure & Dimension Performance Assessment Tasks, I tried to give students some choice.

Everyone started with Some Really Obscure Geometry Problem.

Guesses for region A were 32-50, with the median at 40%.

Guesses for region B were 5-18, with the median at 10%.

Guesses for region C were 12-23, with the median at 20%.

Guesses for region D were 25-38, with the median at 30%.

Students then chose whether to try the square task or a Triangles task that used to be on the Mathematics Assessment Project site but doesn’t seem to be anymore.

Students specifically practiced look for and make use of structure.

We don’t always “finish” tasks like these. I wonder how much that matters.

1 Comment

Posted by on September 21, 2015 in Geometric Measure & Dimension, Geometry

### One response to “Triangles and Squares”

1. September 21, 2015 at 12:22 pm

I like the obscure geometry problem.
The coordinates attempt could be more convincing if they had taken a 9 by 9 or a 3 by 3 square!
Sometimes you have to get onto the diagram, held vertically, and see what it does to you.