A short dictation can be added to almost any tutor-learner session. Most learners enjoy the challenge and it can give you some feedback on their spelling, listening, grammar, etc. A partial dictation can be prepared ahead of time or while your learner is doing an exercise. Here's a sample for low level learners.
http://www.prolinguaassociates.com/BD/Sample%20Basic%20Dictations%20Lessons.pdf