Travis, yes. as an absolute basic i stand by my comment to teach them a 4 wrap (english prussic) it CAN be tied with the tail of the rope with a stopper knot just like a blakes or tautline.
If tied with a prussic loop it cant roll out, and is very hard to tie wrong, both traits of a blakes and a taughtline i believe.
I stand by my comments that a bowline, Prussic and a figure * are the basics then introduce split tails, prussic loops and carabiners.
Make sure that they know climbing knots inside out before they leave the ground. 10foot (or higher) up is nowhere to find out that you cant tie a bowline.
Once you have mastered basic movement then move onto other knots that allow for easier and faster movement.
Jamie