Tolfdir won't cast the spell at me [closed]
Unfortunately this is a known bug in all versions of the game on all platforms
"When teaching the Lesser Ward spell, Tolfdir may not shoot fire at the Dragonborn."
Try reloading a previous save before you got the "First Lessons" quest.
Or try the console command to mark the quest as complete:
SetObjectiveCompleted <MG01> <1>
Source: http://elderscrolls.wikia.com/wiki/Tolfdir