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Subject: Economics
Semester: 1
Period: 2
Week: 7
School Name:
Teacher’s Name:
Subject: Economics
Grade Level: Grade 10
Week & Period: Week 7, Period II
Date:
Topic: Demand and Supply
Sub-topic: Definitions, Laws of Demand and Supply
Learning Objectives:
By the end of the lesson, learners should be able to:
- Define demand and supply with real-life illustrations.
- State and explain the laws of demand and supply.
- Identify the difference between demand and quantity demanded.
- Identify the difference between supply and quantity supplied.
- Explain how the price of a commodity affects demand and supply.
Instructional Materials:
- Charts illustrating demand and supply curves
- Real-life examples (market scenarios)
- Flashcards with key terms
- Graph paper and rulers
- Markers or colored pencils
Anticipation (Warm-Up Activity):
Teacher holds up a popular snack and asks:
- “Who would buy this snack if it cost $1?”
- “What if the price changed to $5 or dropped to 50 cents?”
This leads to a discussion on how price affects desire and ability to purchase, guiding learners toward the concepts of demand and supply.
Building Knowledge (Main Lesson):
Definition of Demand:
Demand is the willingness and ability of a consumer to buy a particular good or service at a given price and time.
- Example: If oranges cost $0.50 and I can afford and want them, that’s demand.
Definition of Supply:
Supply is the willingness and ability of a producer or seller to offer goods and services for sale at a given price and time.
The Law of Demand:
“All things being equal, the higher the price of a commodity, the lower the quantity demanded, and vice versa.”
- Demand and price move in opposite directions (inverse relationship).
- Represented by a downward-sloping demand curve.
The Law of Supply:
“All things being equal, the higher the price of a commodity, the higher the quantity supplied, and vice versa.”
- Supply and price move in the same direction (direct relationship).
- Represented by an upward-sloping supply curve.
Activities:
Class Task:
Students draw two simple graphs:
- A demand curve showing the inverse relationship
- A supply curve showing the direct relationship
Group Discussion:
In groups, students will list items they demand most at lower prices and what sellers are more willing to supply at higher prices.
Experiment or Simulation:
Title: Simulated Marketplace Activity
Materials Needed: Play money, price tags, student-made products (e.g., paper cutouts of fruits or books)
Procedure:
- Assign half the class as sellers and the other half as buyers.
- Set different price levels for a product and observe changes in quantity bought and sold.
- Record findings to show demand falls as price increases and supply rises.
Observation:
- Demand reduced as price increased.
- Supply increased when price rose.
Assessment Questions (Classwork):
- Define demand.
- State the law of demand with one example.
- How does price affect supply?
- Illustrate a demand curve.
- Distinguish between quantity demanded and demand.
Homework:
- Interview a market woman or shopkeeper and find out how changes in prices affect what they buy or sell.
- Write one paragraph explaining your findings.
Expanded Notes:
- Ceteris Paribus (all other things being equal) is crucial in economic analysis.
- Price is not the only factor — income, taste, preferences, and technology also affect demand and supply.
- Laws of demand and supply are foundational to understanding markets.
Differentiation:
- Use of visuals and simulations to help less fluent learners.
- Graph sketching for visual learners.
- Real-life examples for contextual understanding.
Teacher’s Reflection:
- Did learners grasp the difference between demand and supply?
- Were they able to apply the laws of demand and supply using practical examples?
- Were the graphs correctly interpreted?