Lesson Plan

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Lesson Plan
Grade: Date: 17/01/2026
Subject: Economics
Lesson Topic: Causes of decreases and increases in supply
Learning Objective/s:
  • Describe the law of supply and differentiate between movement along and a shift of the supply curve.
  • Identify at least six factors that increase supply and six that decrease supply.
  • Explain how each factor shifts the supply curve and predict the resulting impact on equilibrium price and quantity.
  • Construct and label supply‑curve diagrams illustrating right‑hand and left‑hand shifts.
  • Apply knowledge to answer revision questions and real‑world examples.
Materials Needed:
  • Projector or interactive whiteboard
  • PowerPoint slides with supply‑curve diagrams
  • Handout summarising supply shifters
  • Worksheet with revision questions
  • Markers and whiteboard
  • Sticky notes for quick polls
 Introduction:
Begin with a quick poll: “If the price of smartphones falls, what happens to the amount producers are willing to sell?” Connect this to students’ prior knowledge of the law of supply, then outline that today they will explore why supply can shift independently of price and how to recognise those shifts.
Lesson Structure:
  1. Do‑now (5’) – Students answer a short quiz on the law of supply displayed on the board.
  2. Mini‑lecture (10’) – Review the law of supply, differentiate movement along vs. shift, introduce the list of supply shifters.
  3. Guided practice (12’) – In pairs, classify each factor from the handout as increasing or decreasing supply and discuss the underlying reason.
  4. Diagram activity (10’) – Pairs draw two supply‑curve diagrams (right‑hand shift for a technology improvement; left‑hand shift for a tax) and label axes and causes.
  5. Application questions (8’) – Groups answer the three revision questions; teacher circulates to provide feedback.
  6. Check‑for‑understanding (5’) – Exit ticket: write one factor that shifts supply right and one that shifts it left, with a brief explanation.
Conclusion:
Recap the key supply shifters and how each moves the curve, linking back to the initial poll. Collect exit tickets to gauge understanding, and assign homework: complete a worksheet that requires students to match real‑world scenarios with the appropriate supply shift and predict the effect on market equilibrium.