Introduction
Have you ever gone shopping and noticed signs such as “20% OFF,” “30% DISCOUNT,” or “SALE”? As a smart shopper, it is important to know how to calculate discounts and sale prices. Mathematics is not only used inside the classroom—it is also useful in our everyday lives. In this WebQuest, you will become a Smart Shopper. You will explore online shopping resources, investigate product prices and discounts, and use your knowledge of percentages to determine how much you can save. Are you ready to become a wise and mathematical shopper?
Task
Your task is to investigate three products that are currently available online and have a discount or sale.
For each product, you will:
- Identify the name of the product.
- Record its original price.
- Identify the discount percentage.
- Calculate the amount of discount.
- Calculate the final sale price.
- Calculate the total amount saved.
- Present your findings in a simple table or poster.
Final Product
Create a “Smart Shopper” presentation/poster showing your three chosen products and your calculations.
Your output should clearly show:
- Product name
- Original price
- Discount percentage
- Discount amount
- Final sale price
- Amount saved
At the end of your presentation, answer this question:
“Why is understanding percentages important when shopping?”
Process
Follow these steps carefully to complete your WebQuest.
Step 1 – Review Percentages
Review how percentages are used to calculate discounts.
Remember:
Discount Amount = Original Price × Discount Rate
Sale Price = Original Price − Discount Amount
Example:
A bag costs ₱1,000 and has a 20% discount.
Discount:
₱1,000 × 20% = ₱200
Sale Price:
₱1,000 − ₱200 = ₱800
The shopper saves ₱200.
Step 2 – Explore Online Products
Visit the websites provided by your teacher.
Look for products that have a discount or sale.
Choose three different products.
Examples:
- Clothes
- Shoes
- Bags
- School supplies
- Gadgets
- Household items
Record the following information:
| Product | Original Price | Discount |
|---|---|---|
| Product 1 | ₱_____ | _____% |
| Product 2 | ₱_____ | _____% |
| Product 3 | ₱_____ | _____% |
Step 3 – Calculate the Discount
For each product, calculate the amount of money you will save.
Use:
Discount Amount = Original Price × Discount Rate
Show your solution.
Step 4 – Calculate the Sale Price
Calculate the final price after the discount.
Use:
Sale Price = Original Price − Discount Amount
Show your complete solution for each product.
Step 5 – Organize Your Findings
Complete the table below:
| Product | Original Price | Discount | Discount Amount | Sale Price | Amount Saved |
|---|---|---|---|---|---|
| Product 1 | ₱ | % | ₱ | ₱ | ₱ |
| Product 2 | ₱ | % | ₱ | ₱ | ₱ |
| Product 3 | ₱ | % | ₱ | ₱ | ₱ |
Check your calculations before creating your final output.
Step 6 – Create Your “Smart Shopper” Output
Create a simple poster, infographic, or presentation.
Your output should include:
SMART SHOPPER
- Three products
- Original prices
- Discount percentages
- Discount amounts
- Final sale prices
- Total savings
Make your presentation clear, organized, and easy to understand.
Step 7 – Reflection
Answer the following questions:
- Which product gave you the biggest discount?
- Which product gave you the biggest amount of savings?
- How can knowing percentages help you when shopping?
- Why is it important to calculate the actual sale price before buying something?
Write your answers in complete sentences.
RESOURCES
Use the following resources to help you complete your WebQuest:
1. Khan Academy – Percentages
Review basic concepts involving percentages and real-life applications.
2. Math is Fun – Percentages
Use this resource to review how percentages are calculated.
3. Online Shopping Websites
You may use online shopping websites to find products with discounts and sale prices.
4. Teacher-Provided Materials
Use your teacher's lesson materials about percentages and discounts.
Important: Always use reliable information and record the website where you found each product.
Evaluation
Your work will be evaluated using the following rubric.
| Criteria | 4 – Excellent | 3 – Good | 2 – Fair | 1 – Needs Improvement |
|---|---|---|---|---|
| Mathematical Accuracy | All calculations are correct | Most calculations are correct | Some calculations are correct | Many calculations are incorrect |
| Completion of Task | All required information is complete | Most information is complete | Some information is missing | Much information is missing |
| Use of Resources | Resources are properly used and cited | Resources are used appropriately | Limited use of resources | Resources are not properly used |
| Presentation | Very clear, organized, and attractive | Clear and organized | Somewhat organized | Difficult to understand |
| Reflection | Answers are thoughtful and complete | Answers are clear | Answers are brief | Answers are incomplete |
Total: 20 Points
18–20 – Excellent
15–17 – Very Good
11–14 – Good
10 and below – Needs Improvement
Conclusion
Congratulations, Smart Shopper!
Through this WebQuest, you explored how mathematics—particularly percentages and discounts—is used in real-life situations.
You learned how to identify discounts, calculate the amount saved, determine the final sale price, and make informed shopping decisions.
Remember that being good at Mathematics is not only about getting correct answers in the classroom. It is also about using mathematical skills to make wise and practical decisions in everyday life.
Final Reflection
Think about your experience in this WebQuest and complete this statement:
“I learned that percentages are important in everyday life because __________________________.”
“I can use what I learned today when __________________________.”