multiplication songs for your kids to learn their times tables -- especially if your children love music and learn best with music.
Make a Music Clock! Includes instructions and free printable music notes. - Teaches children the value of each of the 4 common music notes.
Composing Music with Math: Activity for Kids-probably NOT a HS activity, but still cool! (How could this be adapted for higher level learners?
Linking music to Maths: Printable money with notes and rests, along with math connection worksheets!
Music Connections to other subjects.