Re: conn pan american sax
Another possibility for the meantime may be to transpose tenor saxophone music up one whole step. Then the C-melody could play in the correct key. For a learning student, it would all have to be written out, though, and the music teacher may not want to take the time to do that.
Another possibility would be to read Baritone Bass Clef and transpose up an octave, but again, it would be best if that were rewritten, as saxophones generally don't read off the bass clef.
If your child plays the piano, and already reads bass clef, that might work, though.