Mortimer by Robert Muncsh

This is one of my favorite preschool-kindergarten books.  Mortimer is the main character and he doesn’t want to go to bed.  Instead of sleeping, he sings:

With preschoolers, we sing the song every time the words come up in the story.  Sometimes I add egg shakers.  They pick them up and shake while we sing and put them down as soon as the song is over.  With kindergartners I add a Boomwhacker part.  Usually something involving a C, E, and G.  I make up a pattern and they play that whenever the song occurs.  In 1st grade the students are ready to rotate to a different instrument after the song is sung.  I put the instruments in a line and show each part before we read the story.  Students rotate to the next instrument every time we sing the song.