it was about this age that my parents decided i needed to get better about making my bed. i had never been expected to do it before and i honestly forgot. i've never been a morning person, and in the rush to get out the door i'd forget.
they gave me the exact same punishment (and it was a punishment, not a natural consequence.) no riding lesson if i missed even one morning. riding was my life. i missed it for a solid month, because i'd get it most mornings but never quite managed a full week.
i'm STILL resentful over that. if that effing bed was such a huge deal, couldn't they just have reminded me at some point during the morning? i get responsibility, but i was 11. i was a straight A student, but forgetful about this one thing, and this thing was where they decided to draw a line in the sand.
i see two issues here. one is not doing her homework and losing her papers. this is something you can help her with, not take control of it but simply give her a hand. sit with her for half an hour in the evening. work with her to devise an organizational system. check with her to make sure papers have been turned in. she needs to own it, but you can help with it. i wouldn't tie this part of it to the riding. i'm sure school has consequences for her when she fails to do her work, and you should always back them up.
the lying is another matter. yes, they're related, and you helping her stay on top of her work will help her stay away from circumstances which set her up to lie. but ultimately the lie is a conscious choice, and there needs to be zero tolerance for that. i WOULD pull riding lessons for lying.
but check yourself too. are you modeling honesty? does she see you telling a friend 'oh sorry we can't make it, we have a doctor appointment' when you just want to get out of something. do you tell your kids Little White Lies to motivate them, for example 'i see the bus coming! hurry up and put your shoes on!' when it's really not? can she count on you to be honest with her even when it's uncomfortable for you?
i'm glad that you're looking at all the things she's doing without and conducting a recheck on your parenting philosophy. you're absolutely right that just yanking everything isn't helpful and will actually foster resentment and pushback. but there DO have to be consequences for carelessness and dishonesty.
but set her up for success.
lastly i'd suggest that you consult with HER on what the consequences should be for the various infractions. ask her what she thinks is appropriate. let her have a say. the answers may surprise you.
khairete
S.