Lesson Plan

• State the balanced symbol equation for photosynthesis accurately.
• Explain how photosynthesis removes CO₂ and releases O₂, improving air quality.
• Describe where photosynthesis occurs within plant cells.
• Analyse the impact of increased plant cover on atmospheric CO₂ levels.
• Evaluate the significance of photosynthesis for climate regulation.

• Projector or interactive whiteboard
• Printed worksheet with the photosynthesis equation and diagram
• Plant leaf samples (or images) for observation
• Markers and chart paper
• Student notebooks and pens

Begin with a brief news clip on rising CO₂ levels to capture interest. Ask students what they already know about how plants affect the atmosphere, linking to prior lessons on gases. Explain that by the end of the lesson they will be able to write the exact photosynthesis equation and articulate its relevance to air quality.

1. Do‑now (5') – Students write the photosynthesis equation from memory on a sticky note.
2. Mini‑lecture (10') – Teacher reviews chloroplasts, the balanced equation, and why photosynthesis matters for CO₂ removal.
3. Guided diagram activity (12') – Students label a provided schematic, identifying reactants, products, and energy flow.
4. Group discussion (10') – Teams evaluate how increasing plant cover could mitigate atmospheric CO₂, citing examples.
5. Quick quiz (8') – Individual multiple‑choice questions check understanding of the equation and key concepts.
6. Exit ticket (5') – Each student writes one way photosynthesis influences climate and submits it.

Summarise the balanced equation and its environmental significance, reinforcing the link between plant activity and air quality. Collect exit tickets as a formative check and assign a short homework: research a local tree‑planting initiative and note how it could affect regional CO₂ levels.