Is it "childs" or "child's" [closed]

I am making a website to manage homework for students, parents and teachers.

Anyway, I want the grammar to be correct and was wondering what would be the correct way to say this:

All of your child's homework is complete.

I don't know whether this is childs or not, I am referring to a single child in this sentence by the way. Not multiple.

Or am I making this sentence wrong anyway and there is a better way, because it sounds wierd.


Yes, child's is correct.

The possessive form of child is child's.