technology in education - Looking for Venn Diagram Maker - Mathematics Educators Stack Exchange
venn diagram
https://www.desmos.com/calculator/0ecohwdsna only a minor change but it renders it better
More on reddit.comHow to calculate the areas of overlapping circles (for a Venn-Diagram)
I need an app that lets me draw Venn diagrams for a logic course
Videos
Here's something I made in Desmos to this effect. While you cannot click the regions themselves to fill them, you can enable or disable the region by clicking the corresponding folder on the left sidebar to fill the regions.
Edit: I forgot that Actions are a thing on Desmos! I rebuilt it to have clickable regions based off of Michaล Miลkiewicz's fantastic work. Check out the new clickable version here.
To summarize:
@CameronWilliams' work gave me what I needed to make all the images I wanted. I am using this on desmos for that purpose.
I used those images to make a randomized problem in MyOpenMath. It's problem #990768, if you'd like to use it. (I'm using it in a quiz.)
And to help students learn more before the quiz, I point them to this geogebra page.