Lesson Plan

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Lesson Plan
Grade: Date: 17/01/2026
Subject: Geography
Lesson Topic: Processes and landforms: weathering, granite and limestone landforms
Learning Objective/s:
  • Describe how tropical climate conditions affect physical, chemical, and biological weathering processes.
  • Identify and compare key granite and limestone landforms typical of tropical regions.
  • Explain the formation mechanisms of karst landscapes and granite tors, domes, and mesas.
  • Analyse the differences in drainage and surface textures between granite and limestone terrains.
  • Apply appropriate geographical terminology to label diagrams of tropical landforms.
Materials Needed:
  • Projector and digital slide deck
  • Handouts with diagrams of granite and limestone landforms
  • Granite and limestone rock samples
  • Worksheets for comparative table activity
  • Whiteboard and markers
  • Interactive map software (e.g., Google Earth)
  • Exit‑ticket slips
 Introduction:
Begin with striking photos of tropical karst caves and granite tors to capture interest. Ask students what they already know about weathering in hot, wet climates and how it shapes landscapes. Explain that today they will explore how weathering creates distinct landforms in granite and limestone, and outline the success criteria: correctly naming landforms, explaining processes, and comparing the two rock types.
Lesson Structure:
  1. Do‑now (5'): Quick mind‑map on “weathering” displayed on the board.
  2. Mini‑lecture (10'): Overview of tropical physical, chemical, and biological weathering with real‑world examples.
  3. Group activity (12'): Examine granite and limestone samples; use handouts to classify observed landforms.
  4. Guided investigation (15'): Use interactive map to locate global examples of granite tors, domes, and karst caves; annotate processes.
  5. Comparative table exercise (10'): Complete a table contrasting granite vs. limestone landforms; discuss findings.
  6. Formative check (5'): Exit ticket – one sentence describing how climate influences landform development for each rock type.
Conclusion:
Summarise that tropical weathering drives both the rugged granite features and the soluble limestone karst systems explored today. Students hand in their exit tickets summarising the key process for each rock type. For homework, they research a local or global example of a tropical granite or limestone landform and prepare a brief sketch with appropriate labels.