One of the teachers in the group I was working with was very experienced with interactive notebooks and she shared a great idea on how to place your grade level formula chart so that students have easy access to it no matter what page they are working on. Here is the finished product.
Step 1: Copy your state's formula chart one-sided. I drew dashed lines where I want the students to trim.
Step 2: Glue in right side like this. Make sure you can read all the formulas
Step 3: Glue in top like this
Step 4: Fold top down and right side in
Step 5: When students need formula chart, they can just open it up and it will be clearly visible no matter what page they are working on.