I like to use a bell as an aid to review a song. I direct the children to start singing out loud and to listen for the bell. When I ring the bell they should continue to sing in their mind. When they hear the bell again, they should again sing out loud. Of course, the kids all want a turn with the bell and will sing the song several times. Getting the song "stuck in their mind" is the point of the game. Isn't it nice that children are so willing to think of simple things as a game?
I used the bell this last week to review "I Know That My Savior Loves Me." It was especially challenging for the kids because we didn't have a pianist to help, so coming back in at the same time was tricky! But, this actually worked in my favor as it compelled the kids to concentrate on the tempo. After a couple of times through the song, they did very well and we had lots of fun.