On a clay modelling course you will probably learn sculpting skills along with gaining knowledge about different types of clay. Using oil based clay is a great way to get into pottery without needing a kiln. Ceramic based clays will need firing in a kiln. Polymer clay is now widely used as a material which can be ‘set’ at a low temperature and can therefore be practiced using a home oven. You may know of polymer clay by one of its brand names ‘Fimo’.