[SgtMillhouse648]

Id say start them down making something simple, like a 4x6 block. show them what the different features mean. show them they can extrude that shape straight up, or revolve it around one of the edges to make a cylinder. then take this block and show them how to make a sketch on top of that one block. go in and show them how to round/chamfer the edges. In my intro to eng. des. class, everyone's first project was a puzzle cube. you had to take a 3x3 cube and divide it up into a number of pieces, sketching each out on iso/graph paper first. then make the parts and assemble them. then make a presentation/exploded view of them all and last make an .idw of every piece. It worked real good for helping the other kids get the basics down.