Lesson Plan

• State the balanced chemical equation for photosynthesis.
• Identify the reactants, products, and energy source in the overall reaction.
• Explain where light‑dependent and light‑independent reactions occur and outline their main steps.
• Describe the role of chlorophyll and other pigments in capturing light energy.
• Analyze factors that influence the rate of photosynthesis.

• Projector and screen
• Whiteboard and markers
• Printed worksheet with equation, diagram, and checklist
• Leaf cross‑section diagram handout
• Coloured markers for labeling
• Short animation video of light‑dependent reactions
• Kahoot/quiz cards for exit ticket

Begin with a quick question: “What would happen to a plant if it never received sunlight?” This taps into prior knowledge of plant energy needs. Review the concept that plants convert light into chemical energy. Explain that today’s success criteria are to write the balanced equation correctly, locate each stage of photosynthesis, and understand factors that affect its rate.

1. Do‑now (5'): Students write the photosynthesis equation from memory; peer check.
2. Mini‑lecture with slides (10'): Present the overall reaction, identify reactants, products, and energy source.
3. Interactive diagram activity (10'): Using the leaf diagram handout, label where light‑dependent and light‑independent reactions occur.
4. Video demonstration (5'): Show a short animation of the light‑dependent reactions and discuss key steps.
5. Group worksheet (15'): Complete sections on the Calvin cycle steps and fill in a table of factors affecting rate.
6. Formative quiz (5'): Kahoot or rapid‑fire questions to check understanding of objectives.

Recap the balanced equation, where each stage occurs, and the main factors influencing photosynthesis. Students complete an exit ticket summarising one factor that could limit the process in their environment. For homework, assign a brief research task: “Find a real‑world example of how climate change might impact photosynthetic rates in crops.”