Its just teaching her to double check her work... carelessness leads to errors.
Of course, errors ALSO teaches them.
How old is your child????
In school my kids' teachers teaches the kids to look over their work after completion, to double check things. Because, careless errors occur when "rushing."
My kids are in 1st grade and 5th grade.
Kids in all these grades, "rush" through things.
So, it is an ongoing thing, teaching them that they need to double check their work.
Even kids who "take their time" can make mistakes. Too.
So know that it is not only the kids that take their time, who do not, make mistakes.
They do, too.
And likewise, some kids do work fast and seemingly rush, but do accurate work.
Read things twice or thrice.
Answer it the best they know how.
Double check their work after.
Make corrections if they catch it.
If errors still occur, that is all a part of learning, too and is good... because then the Teacher will "see" where the student needs more help.
When/if my kids make mistakes in their homework due to rushing or carelessness or just not knowing it well, I LET them go to school with it incorrect. BECAUSE the Teacher needs to see, that. In order to give more feedback to the student and parent.
Then, comprehending the CONCEPTS of the work, is another, thing.
So THAT is where, the Tutor, can help...
My daughter had a Math tutor once. The Tutor, was able to EXPLAIN concepts to my daughter in MANY ways... because, all people have different ways of learning, but the bottom line is, that they understand the concept, and then practice the concept or equations over and over, and then master it. Practice is good.
Do you want her to score higher on her work, or to be more careful and mindful of her work?
These are 2 different things.
Some kids always try their best, but still do not comprehend the work.
Doing well means, working for it and practicing.
And a part of studying means, learning how to organize... themselves.
It is a multi pronged thing.
And in school, the curriculum has to be taught in a certain way using certain methods. And they typically need to SHOW their work. Not just the answers. So, that also has to be worked on, and by knowing... what methods the school/Teacher is using, to do the work. In school.
For example: if your daughter uses a method to do her math that was taught in another way, that may NOT be the way it is taught in school, even if she gets the answers correct.
ie: we teach my daughter math in "our" way and by how we know it. Then my daughter learns the same thing in school, but using the school's curriculum methods as required by the school curriculum. So if my daughter does her math in school, using "our" methods, her Teacher will say she needs to do it IN THE WAY THAT IS TAUGHT in class. To show that she comprehends, the IN CLASS concepts and methods, as it is taught, in, the school.
The Tutor that my daughter had, was also a Teacher in our school's system and she was aware of all the methods the schools and Teachers use, for teaching math and reading/writing. Thus, my daughter's Tutor, taught her as well, per the school's methods.
This is just an example of what we encountered and what I have seen.