Link for the talk: https://dl.dropboxusercontent.com/u/3116524/LetItGrow.key PDF version (missing some nice animated content, may be a bit garbled) https://dl.dropboxusercontent.com/u/3116524/LetItGrow.pdf
You may wish to use this in your own class! Making a new output module (like the face of flower, use those as templates) would be a great assignment. I'll try to make it increasingly straightforward in the future, too.
It's Apache licensed, so use it however you wish. I do love hearing about new uses, so drop me a line on twitter @galaxykate if you do!