Hello,
I have redesigned the Dr. GeoII[1] user interface to make it looks like a Morph component. It is more in the Squeak Morph constructivist philosophy approach (see screenshot).
Now you can create an interactive geometry canvas (a PasteUpMorph exactly) from the PartBins ([Alt]+O). From the halo menu or the canvas menu you access two submenus, one to select a construction tool, the other one to get buttons you can plug any where you want.
These changes mean you can take a DrGeo canvas and plug it in a BookMorph page, then take some construction buttons you want the kids to use and plug them in the page book as well. Well the usual stuff you expect with Squeak.
Sorry the menu are still only in French, but you know that English and French vocabulary are very close, don't you?
Fetch the latest source from http://www.squeaksource.com/DrGeoII.html. It should work with 3.8, 3.9 and SqueakLand.
It will be great if someone could produce a screencast.
Really designing stuff with Squeak is of great pleasure!
Hilaire
[1] Dr. GeoII is an interactive geometry tool for Squeak