I am enjoying using the music from the 'Munch and Move'(NSW Dept of Health, Australia initiative) at school. The songs are short and make nice little gap fillers. The lyrics are simple and the children can quickly learn the song. They also make for great discussion. My 4-5 year olds particularly like doing the 'Warm Up' song, followed by 'Twist, Balance, Shake, Run'. They were fascinated to discover that their heart did indeed pump harder after exercise.