Lesson Plan

Resources → Subject Notes → Economics → Notes
Lesson Plan
Grade: Date: 17/01/2026
Subject: Economics
Lesson Topic: Main influences on whether supply is elastic or inelastic
Learning Objective/s:
  • Define price elasticity of supply and interpret its numerical values.
  • Identify and explain the six key factors that determine whether supply is elastic or inelastic.
  • Analyse real‑world examples to decide the likely elasticity of supply.
  • Apply the concepts to predict how changes in time, inputs, capacity, etc., affect producers’ responses.
Materials Needed:
  • Projector or interactive whiteboard
  • Slide deck with definitions and influence table
  • Handout summarising the influences and examples
  • Whiteboard and markers
  • Exit‑ticket cards
 Introduction:
Begin with a quick poll: “If the price of strawberries doubled overnight, would farmers instantly produce more?” Connect this to students’ prior knowledge of supply‑demand. Explain that today they will explore why producers sometimes cannot adjust quickly. Success criteria: students will list the key influences on supply elasticity and apply them to examples.
Lesson Structure:
  1. Do‑now (5’) – Students answer the poll question on sticky notes; teacher collects responses.
  2. Mini‑lecture (10’) – Present definition of price elasticity of supply and interpretation using slides.
  3. Interactive activity (15’) – In groups, examine the six influences; each group creates a quick poster linking an influence to a real‑world example.
  4. Gallery walk & discussion (10’) – Groups share posters; class discusses why each influence makes supply more elastic or inelastic.
  5. Guided practice (10’) – Solve a short worksheet calculating elasticity and categorising supply based on given scenarios.
  6. Check for understanding (5’) – Quick quiz via Kahoot or show of hands.
Conclusion:
Recap that time, input availability, factor mobility, spare capacity, nature of the good and regulations shape supply elasticity. Ask students to write one exit‑ticket: “Which influence would most affect the supply of electric cars and why?” Assign homework to find a recent news article illustrating a change in supply elasticity and be ready to discuss its implications.