This lesson plan summarizes a 35-minute class on teaching organ systems to 6th grade science students. The plan outlines the objectives to develop student interest in science and understanding of concepts like organ and organ systems. Students will learn to differentiate organs, identify respiratory system organs, and name 3 organ systems. The teacher will use a model and questions to introduce respiratory systems, explaining lungs, windpipe and diaphragm. Formative assessments include student worksheets and questions. Students are assigned making a diagram and explaining respiration in writing for homework.