What should a teacher do, when a student has not practiced for a lesson?

Spend the lesson practicing with the student:
90 votes 48%

Set aside today's work and have a sight-reading session or read duets:
51 votes 27%

Express disappointment and give a stern lecture:
21 votes 11%

Pretend nothing is wrong and hold the student to normal expectations:
13 votes 7%

Something else:
12 votes 6%

(Poll closed: 187 votes)