Artists create multiples to emphasize a contemplation of form, to challenge us to see difference or the unique in the face of repetition, to ask questions about value in an age of disposable, identical consumer products or as a meditation on the very process of making. In this course, we will make a series of objects using moulds in plaster and create installations with those objects. Projects will include making push moulds of symmetrical objects and creating multiples with air-drying or oven-hardening clay, making a larger object cast in plaster and a collaborative project in which students will swap cast objects. Casting in plaster has certain limitations as compared to silicone, but also certain benefits. It is cheaper, less toxic and can be used for ceramic slip casting.