Students can use 123D sculpt to design a mask out of digital clay before they sculpt their own in real clay. This will help them think 3-dimensionally about their design considering additive and subtractive elements in their plan. Here is my first try using this free app.
Download the app here: itunes.apple.com/us/app/123d-sculpt/id446119510?mt=8
See my students using this app after making their own real sculptures: drydenart.weebly.com/1/post/2012/09/the-disaster-that-didnt-happen.html
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