looping through songs

I was listening to someone talk about how kids who don't come every week have a hard time really understanding when you say "last week we talked about..." In the curriculum we use for our nursery-preschool every lesson generally has a short song. Songs are great memorization tools, so I decided one great way to help those kids pick up on what we talked about previously, and reinforce the lessons for the kids who were there, was to loop back to all the songs from each lesson. I bought small chart paper tablets and my intern and another volunteer began writing up the songs. Now teachers can quickly flip through each song.