Hello there,
I have 4 kids (11, 9, 7 and 2,5 years old) but I "do not work", so slightly different position. (Our school was v unsupportive)
Some practical things that worked for us (on top of "traditional schooling time at home")
My 9 year old started to use traditional camera - wondered around the garden for birds, insects, flowers etc, also reading upon the subject from paper based books.
We've been gardening before, but they got more involved - 11 year old daughter spent a great deal of time with her plans - growing plants from seeds. Even in a balcony you can grow something, preferably edible.
We have no pets due to our imminent move, but for the next lockdown I will have relatively low maintenance pets (rabbit, guinea pig, or even chicken - collecting eggs is very exciting). Looking after pets can be very rewarding.
My 11 year old started writing a diary - every day.
She also writes traditional paper based letter to her friend (who moved away years ago), her grandparents, her auntie. It is always so lovely to receive a letter from some friends.
She learnt how to make bread (not difficult) and provided the family with bread during the early days of lockdown, and since then she bakes every now and again. Your daughter can do that, once taught, it is easy.
Screen-time. We don't have TV, they can only watch films I give them. David Attenborough is always a good choice if you want some educational staff.
Books - of course, but not kindle. My children (apart from the two youngest) read a lot, as they do not have a choice - they also read to each other. (Asterix, Tintin can be very addictive in a good way)
How about learning an instrument - music teachers were quite good at giving online lessons - also daily practices would be ideal. (Another non-screen activity)
So the above activities fill some part of the day. The rest spent with arguing or some great fighting (between the boys)- which of course you cannot provide ;-)
I think you can make a huge difference by limiting internet use, instead put on an off-line film for her when needed. The internet is so addictive (and full of meaningless crap) that everything else seems just too slow, too boring in comparison. But it can be reversed fairly quickly, especially if you offer some interesting alternative.