Balloon Popping meter: as the children sing well, a leader pulls on the ribbon from behind. If the kids have mastered a song, the balloon makes it to the top, where it is popped. If all the songs are mastered, the kids get tootsie "pops.
Learn how to spell the colors with these jazzy little jingles (from the Color Songs CD by Frog Street Press). My son's PreK teacher uses these! Kids learn how to spell their color words very easily when they learn it in a song.