A great way to help your students separate their ideas when writing expositions!
Simply print, cut and hand the pieces of paper to your students one at a time.
Once I made this, I noticed an instant difference in the way my students approached their writing, as it was clear what they had to do next.
You may change certain words I have used, depending on the way you prefer to explain how to do this to your class.
Enjoy, and happy writing!