This kit includes a warm-up exercise by Anne Ellsworth - Yo-Yo Warm-Up - that goes with the song. The song itself is a partner song that incorporates the warm-up exercise (basically) as one of the parts. The other part is a neat melody that sounds good, is fun to sing, and plays off of the yo-yo concept. Use the song as a reward after your students have done the warm-up, and let them take turns singing the parts. (from Music K-8, Vol. 23, No. 5)