G.B.
You know, she may not be a written style of learner. She may be more verbal or visual. Teaching her a different learning style can sometimes be impossible. You might want to research learning styles and sort of decide what kinds you think she is really strong in. Most people have a strong score in at least 2 areas. I am super strong is visual, verbal, and aural. That means that I am good at watching and learning, listening and learning, and talking about it and learning.
I stink in the solitary area. I just can't work alone, I get bored and day dream.
If you are determined that she has to be a written style learner then you might want to start having her make lists of all kinds of things. Like making a list of what she needs to do to clean her room.
1. Gather all the shoes and put them on the shelf in matching pairs. If any don't fit anymore give them to mom.
2. Gather all the barbies, their clothes, their accessories, etc...and then put them up in their container. Then put them on the shelf where they go.
3. Pick up any dirty clothes and put them in the right hampers.
4. and so forth.
Have her start making lists of everything you can think of. Learning a new way of learning can take a long time and it will mess her other learning skills up. She is wired to do things the way she is, making new neural networks and connections will just take a while.
I out a link in for you so you can read an overview of them. There are also lots of quizzes you can have her do so you can see if she is really strong in one area or a couple.
I worked with a woman who had to write down everything or it went right over her head. If she got a phone call she had to write down what they said or she would not remember it. If she got a written memo she had to copy it or she would not know what it said. If I asked her to give someone in the group home a bath after dinner she had to stop what she was doing and go write it down.
Our learning styles are important because they are supposed to work together for our optimal leaning potential.
http://www.learning-styles-online.com/overview/
Here's a link to the inventories that will help you figure out how she learns.
http://www.learning-styles-online.com/inventory/
You may be really strong in the areas of writing to learn, she may not. Your way is not better, her way is not less. You'll need to really think about this before you start trying to rewire her brain. She is not a bad student, she lacks maturity that she will get as she ages.