This product focuses on River Studies. It is meant to be used as an Outdoor Learning Activity. So, I encourage you to ask permission to go to the source! I hope you are lucky enough to have your school located within walking distance to a river, or even a creek would do as a compare and contrast. But, if not, Field Trip! Watch your students eyes light up as they dip a fishing line or soak their toes in fresh water for a first time ever.