# A Desmos Proof Activity

I’ve recently been having a bit of a play with the Desmos Activity Builder and they have recently added an ordered list component. Because of this I have created a Desmos activity that explores proof by contradiction. This isn’t an area of mathematics I would naturally think to use Desmos for, but I have used this activity for revision with one of my classes and it seemed to go well.

The first screen is also my first real attempt at using the Desmos Computation layer, specifically I use the aggregate function to make a box plot of students estimates of $$\sqrt{2}$$. Over the summer I want to explore CL properly and have a few ideas on how to improve this activity – watch this space.

Please use this activity and give me any feedback. Find it here.