This 17 page unit on the respiratory system has everything you need to teach about the respiratory system. Each part of this lesson can fit into a 5E Lesson Plan model, but they can also be used in a more traditional manner. There are three original informational texts about the lungs, the pathway of air, and how we breathe. Each informational text has Level 1, Level 2, and Level 3 questions, as well as either a graph or diagram. The informational texts and questions are easy print and go, no pr