How much homework is enough? How much is really beneficial for all types of learners? Should homework be differentiated to cover the needs of all your students?
As a kid, my dad would always tell me that if I studied or did homework half as long as I practiced baseball, I would have had much better grades and gone to Standford. I'm not entirely sure how accurate that is, but that comment has always come back to me as a teacher and now as an administrator. I don't believe I was meant to attend Standford, and spending hours doing homework/studying maybe would have laid a false path for me.
There has to be a balance, and all homework doesn't need to be rigorous academic training, or drill based assignments. Thoughtful, relevant, reinforcing and fun activities can lay an excellent foundation for work that is completed at home.
My district has an actual homework policy which has been a great guide when talking with parents/teachers about homework expectations and limits. There is a nightly time limit depending on what grade your child is in, which helps when structuring homework for the class.