move the post-it backwards so only the last two measures are showing. keep working backwards until they can play the whole last section of the piece correctly.
work on tricky transition spots or places students pause by placing a post-it before and after the trouble spot and practicing between the post-its without stopping or slowing down.
for younger students: a trick i use to get my beginner students to play a piece more than one time (without losing their focus or complaining!) is to cover everything except the first measure with a post-it. once a student plays the first measure 2 times, they can move the post-it and play measures 1 and 