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Mix up a batch of mix in a big bucket...use these materials and amts.
1 part plaster
1 part vermicelite
1 part water
I use a med. sized coffee can for a scoop(for each material) and it gives
me about six handfuls of sculptures. Mix in a bucket and when it "just"
starts to set up like gravy, pour into waiting plastic bags. Kids start
manipulating the bags quickly and hold object in place until it starts
hardening. Actually, I've had them just do non-objective type objects with
scrunched up hands. Let set for a day until fully hardened. At this point
you can pull out and they still feel cold and damp....you can do a little
molding of the object, smooth it out, add designs with butter knives or
popcycle sticks. You can also pull out of bags the next day and let stand
for 2-3 weeks till bone hard, sand with sandpaper, and paint with tempera.
Interesting sculptures. Tie it in with Henry Moore sculptures and you've
got a great lesson. Toodles......
Bunki Kramer - Los Cerros Middle School
968 Blemer Rd., Danville, California 94526