Should I request the opportunity for my child to redo a failed assignment?
That depends. Why do you want your child to redo it?
I want my child to try his or her best in school.
It is good to help your kids at school. You should make sure from now on your kid does their work on time.
I'm going to force my kid to redo it and then make the teacher take it and grade it again.
It is great that you want your child to do better in school. You should however ask the teacher so that the child does not do the work in vain.