How to keep kid motivated during home work?

"but whyyyyy do I neeeeed to dooo this..."

She's at the age where redirection isn't the best strategy. Her question is perfectly reasonable, even if her delivery is... aggravating, to say the least.

I would sit down with her and have a discussion about the homework when you aren't engaged in a battle over it. And I think you need to do some research and come up with some answers to her questions. Why does she have to do homework? Certainly not for educational reasons, or for learning. You need to figure out why this is so important for her to complete, and put it into terms that are relevant to her life. If you can't do it... maybe the homework is just a gigantic waste of time and you're both better off not doing it.

/r/Parenting Thread