The class continued; Forgath moved from pony to pony, giving advice, having those that found success speak to the group at large, coaxing them forward until soon each could focus their internal mana well enough to cause their gems to shine bright.  Some had done better than others, but all eventually were able to do it, much to their excitement and surprise.  He elaborated a bit further upon the theory, sticking to the basics and connecting it to what they were doing, occasionally referencing notes he left on a desk to one side.