They move on to work on the canter keeping him through on the outside rein while making sure he stays in front of the leg aids. They do a single loop serpentine in the canter in both directions, and when they go to lengthen Laura asks him to be shoulder in to keep him straighter.  She explains how riders have to learn how much they have to correct the horse and how quickly, especially on a horse who is so nonchalant. Laura helps from the ground to get him more reactive to the aids.