Lesson Plan

Lesson Plan
Grade: Date: 25/02/2026
Subject: Chemistry
Lesson Topic: State the adverse effect of these air pollutants, limited to: (a) carbon dioxide: higher levels of carbon dioxide leading to increased global warming, which leads to climate change (b) carbon monoxide: toxic gas (c) particulates: increased risk of re
Learning Objective/s:
  • Describe how increased carbon dioxide contributes to global warming and climate change.
  • Explain the toxic effects of carbon monoxide on human health.
  • Identify the health risks associated with inhaling particulate matter.
  • Compare the relative environmental impact of these three pollutants.
Materials Needed:
  • Projector or interactive whiteboard
  • PowerPoint slides on CO₂, CO, and particulates
  • Handout summarising adverse effects
  • Worksheet with a three‑column table for note‑taking
  • Markers and chart paper for group posters
Introduction:
Begin with a striking image of a smog‑filled city skyline to hook students. Ask them what common air pollutants they know and why these matter. Explain that by the end of the lesson they will be able to state the key adverse effects of carbon dioxide, carbon monoxide, and particulates, which will serve as the success criteria.
Lesson Structure:
  1. Do‑now (5'): Students list air pollutants they have heard of and briefly note why they matter.
  2. Mini‑lecture (10'): Teacher presents concise explanations of CO₂, CO, and particulates using slides and diagrams.
  3. Guided note‑taking (8'): Students complete a three‑column table summarising each pollutant and its main adverse effect.
  4. Group activity (12'): Small groups create a poster linking each pollutant to health or climate outcomes; teacher circulates for questioning.
  5. Check for understanding (5'): Quick quiz (Kahoot or show of hands) on the three adverse effects.
  6. Reflection (5'): Students write one sentence describing how reducing each pollutant could benefit the environment.
Conclusion:
Recap the three pollutants and their principal adverse effects, emphasizing CO₂’s role in climate change, CO’s toxicity, and particulates’ health risks. Collect an exit ticket where each student names one personal action to reduce each pollutant. For homework, assign a brief research task on a local air‑quality initiative and ask students to prepare a short summary.