how do I limit the students who see a page based on their completion of an assignment?

Community Member

I have an assignment that has several parts.  I would like the students who complete the first part to see the correct answer before I grade it, so they can work on the second part with confidence they are using the correct part 1 amounts.  

Is there a way I can put a page in my module that can only be seen by those students who have completed the first part of the assignment?