4 years Blender user here :)

That's a good idea, but its not a web based application that can be implemented into KA. So, the user has to install Blender on their device to be able to start with the tutorials. Also, Blender's output size after installation is on the large size (around 225 MB give or take a few MB's ;) ). Instead of Blender, we have the well-known Pixar on KA. They have a few 3D tutorials in their content.

https://www.khanacademy.org/partner-content/pixar

Hello An0n3m0us yes there is a blender 2.77 version Khan academy could use if people were intrested in learning blender its a website you can go to a free sign up  3d https://www.rollapp.com/app/blender, then once you signed up you can launch it and it dosen`t download and install onto you computer, it just pops up and you can use it any way you use blender, it just works the same as any othere version apart once you signed up launch it the little pop up, pops up so you can use it, I am not sure how it saves mind you, I use my chrombook more than I do my windows pc now an it works.

True, but I already can see a few problems with it:

1. You can't save a project without Premium (which costs)

2. You have to sign in to use the apps