You are ultimately responsible for the upkeep of your interactive notebook. Each page should always have a header with the following information: title; date; and page number. Also, when the letters R and L follow the page number, this indicates Left Side/Right Side. Right Side is usually reserved for Teacher Input such as notes. The Left Side, on the other hand, is for Student Output--how you process the information.
Write first, glue later.
Make it your own. Don't be afraid to personalize your notebook, especially the Left Side. It's yours! Ask questions, rewrite definitions, draw diagrams, doodle, etc.
Make it colorful. The use of color increases retention. You will have a lot of information to retain this year. A lot.