Best tips for engaging an unmotivated teen
I have been teaching a student for 4-5 years, who's a very casual player (family never really had practice schedules) and as of the last year pretty much stopped playing between lessons. She's quick to learn, polite, and will try things in lessons, but I've only seen a positive reaction to something once in the last year, that was playing 5ths along with a chord chart she knew while I sang lyrics or played melody. Her mom said she came out of her lesson smiling that day but it hasn't happened again since. Her parents want her to keep playing (ie taking lessons) but don't seem to have any interest in supporting home practice, saying she's "very unmotivated to play piano right now." (bit of an ego hit but her sister is doing great so I'm trying not to take it personally)
I've tried providing more challenge in case she was bored, giving her my favourite/exciting piece options that normally grab my early teen beginners' attention, and we've done some chording which she enjoyed if I sang along, but man, all the songs kids know these days have brutal lyrics that I do not want to sing out loud in a lesson or even have the chord/lyric charts up for!
What would you do? She gives me very little to go on, answers "I don't know" or "doesn't matter" to just about every question I prompt to try to figure out what she likes or doesn't like. I'm at a loss! Thanks for any suggestions.