Understanding the Law of Supply and Demand

Introduction

Have you ever noticed why the price of rice suddenly increases or why jeepney fares sometimes change? 

In the Philippines, the prices of goods and services often change depending on availability and demand.

In this activity, you will explore the Law of Supply and Demand and understand how it affects everyday life in your community.

Task

Your task is to create a presentation (PowerPoint, Canva, or poster) that explains:

  • What is demand
  • What is supply
  • The law of supply and demand
  • Local Philippine examples (rice prices, jeepney fares, gasoline, school supplies)
  • How supply and demand affect prices

You will present your output to the class.

Process

Follow these steps:

  1. Watch and Understand

    Watch videos explaining supply and demand.
  2. Read and Research

    Explore the websites provided.
  3. Take Notes

    Write down:
    • Meaning of supply and demand
    • Factors affecting them
    • Relationship between price, supply, and demand
  4. Apply to Philippine Context 🇵🇭

    Think of real-life examples such as:
    • Rice prices increase when supply is low (e.g., typhoon damage)
    • Jeepney fares increase when fuel prices rise
    • Gasoline prices change depending on global supply
    • School supplies become expensive during back-to-school season
  5. Create Your Output

    Make your presentation or poster.
  6. Prepare to Present

    Practice explaining your ideas clearly.
Evaluation
Criteria Excellent (4) Good (3) Fair (2) Needs Improvement (1)
Content Accuracy Complete & correct explanation Mostly correct Some errors Many errors
Real-Life Examples Very relevant & clear (Philippine context) Relevant Limited examples No examples
Creativity Very creative Creative Some effort Little effort
Organization Very clear & organized Clear Somewhat clear Not organized
Presentation Skills Confident & clear Clear Some difficulty Unclear
Conclusion

Great job! 🎉

You have learned how the law of supply and demand affects prices in real-life situations, especially in the Philippines. Understanding this concept helps you become a more aware consumer and better understand economic changes in your community.

Credits
Teacher Page

 Title :

Understanding the Law of Supply and Demand

🎯 Grade Level:

Grade 8 (Junior High School)

🧠 Subject Area:

Economics / Araling Panlipunan

⏱️ Time Required:

1–2 class periods (45–60 minutes each)

🎯 Learning Objectives:

At the end of this WebQuest, students will be able to:

  • Define supply and demand
  • Explain the law of supply and demand
  • Analyze how supply and demand affect prices
  • Provide real-life examples in the Philippine context
  • Present their understanding through a creative output

🧩 Curriculum Connection:

This lesson aligns with the K–12 curriculum in Araling Panlipunan, particularly in understanding basic economic concepts and how they apply to real-life situations in the community.

🧠 Pedagogical Approach:

This WebQuest uses an inquiry-based learning approach, where students explore, research, and construct their own understanding of economic concepts. It also promotes collaborative learning and real-world application, which are important in developing critical thinking skills.

💻 Materials Needed:

  • Internet access
  • Laptop / tablet / smartphone
  • Presentation tools (PowerPoint, Canva, or paper for poster)

👥 Grouping:

  • Individual or small groups (3–4 students)

📊 Assessment:

Students will be evaluated using a rubric based on:

  • Content accuracy
  • Use of real-life examples
  • Creativity
  • Organization
  • Presentation skills

📝 Teacher Notes:

  • Guide students in understanding key concepts before starting
  • Encourage use of local examples (rice, jeepney fare, fuel prices)
  • Monitor group discussions and provide support when needed
  • Ensure all students participate actively

🔄 Extension Activity (Optional):

Students can observe prices in their local community (market or stores) and explain how supply and demand affect those prices.