| Lesson Plan |
| Grade: |
Date: 03/03/2026 |
| Subject: Mathematics |
| Lesson Topic: Mensuration: perimeter, area, surface area, volume |
Learning Objective/s:
- Calculate perimeter of common plane figures using appropriate formulas.
- Determine area of plane shapes and surface area of solids accurately.
- Compute volume of three‑dimensional figures and apply unit conversion.
- Select and apply the correct formula for a given shape in exam‑style problems.
- Check solutions for reasonableness and correct significant figures.
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Materials Needed:
- Projector and screen
- Whiteboard and markers
- Ruler and geometry set
- Printed worksheet with formulas and practice items
- Scientific calculators
- Prepared diagram slides (rectangle, cylinder, etc.)
- Exit‑ticket slips
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Introduction:
Begin with a real‑world hook asking how much paint is needed to cover a cylindrical tank. Review prior learning of basic perimeter and area formulas. State the success criteria: correctly choose and use formulas for perimeter, area, surface area and volume, and present answers with correct units.
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Lesson Structure:
- Do‑now (5'): Quick perimeter worksheet on the board.
- Mini‑lecture (10'): Review key formulas with projected diagrams of each shape.
- Guided practice (15'): Paired work on area and surface‑area examples from the worksheet; teacher models one problem.
- Worked example (10'): Teacher solves the cylinder surface‑area and volume problem while students follow on their notebooks.
- Independent practice (15'): Mixed problems covering perimeter, area, surface area and volume; teacher circulates for support.
- Quick revision checklist (5'): Students complete the checklist to ensure they have identified shape, written formula, substituted values, shown steps, and recorded units.
- Exit ticket (5'): One mensuration problem to solve and a brief reflection on the lesson’s success criteria.
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Conclusion:
Recap the main formulas and emphasise the importance of units and significant figures. Collect exit tickets to gauge understanding and assign homework: complete the textbook exercises on mensuration, focusing on conversion and accuracy.
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