The lesson plan outlines an inquiry-based learning activity on photosynthesis for 9th standard biology students. The teacher will first explain the inquiry procedure and present the problem to students. They will then gather data by asking questions to clarify details about a classmate's experience finding an insect in their home. Experimental tools like flash cards and charts will be used to demonstrate photosynthesis. Finally, students will analyze the inquiry procedure and explain how environmental factors affect the rate of photosynthesis in plants.