Teaching basic building skills in an OpenSim is fairly straight forward, I have found the kids take to it fairly fast but few think through a quality build first time. Pride in workmanship comes after mastery of the tools I am hoping.
Object creation, scaling and movement skills followed texturing, exploration of other object properties and then a simple brief: make something that looks like something. the only caveat was that it needed to be on their plot, and to scale.
They took to the task with great enthusiasm, exploring the way you construct more complex things from primitives, scaling, rotating, moving with greater and greater precision that comes with experience.
In the end they were inviting their iMates over to have a look, all fairly hoopy. We have, in the next journey into this world, to tie this world activity to the activity happening in MUD and MOO and then look objectively at the whole “amount of activity required to create a unit of believable detail”, but for now, play is a good thing.