Grade 3 · Social Studies

Explain how the cost of production and selling price affect profits

Quarter 2 · Week 6 · TEKS

Standards Alignment

  • TEKS.SOC.3.06C primary
    explain how the cost of production and selling price affect profits; and
  • TEKS.SOC.3.06D primary
    identify individuals, past and present, such as Henry Ford and Sam Walton who have started new businesses.

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Lesson Overview

This Grade 3 social studies lesson explores how the cost of production and selling price influence profits within the U.S. free enterprise system. Students will also learn about notable entrepreneurs such as Henry Ford and Sam Walton who started new businesses. The lesson includes direct teaching, guided practice, and reflection to help students understand economic concepts and connect them to real-world examples.

Learning Objectives

  • Explain how the cost of production affects profits.
  • Explain how the selling price affects profits.
  • Identify individuals, past and present, such as Henry Ford and Sam Walton who have started new businesses.

Success Criteria

  • Students can describe how production costs and selling prices impact profits.
  • Students can name at least two entrepreneurs who started new businesses.
  • Students can explain the relationship between costs, prices, and profits using examples.

Prerequisite Knowledge

Students should understand basic economic terms such as cost, price, and profit, and have some familiarity with the concept of businesses producing and selling goods or services.

Key Vocabulary

  • Cost of production
  • Selling price
  • Profit
  • Business
  • Entrepreneur
  • Free enterprise system

Materials and Resources

  • Visual aids showing examples of products and their production costs and selling prices
  • Images or short biographies of Henry Ford and Sam Walton
  • Chart paper or whiteboard for creating timelines or charts
  • Worksheets for guided and independent practice

Teacher Preparation

  • Prepare visuals illustrating production costs, selling prices, and profits for simple products.
  • Gather images and brief stories about Henry Ford and Sam Walton.
  • Prepare discussion questions and prompts to guide student thinking about profits and entrepreneurs.
  • Set up materials for creating timelines or charts during the lesson.

Detailed Lesson Notes

Understanding Cost of Production

The cost of production is the total amount of money it takes to make a product. This includes paying for materials, labor (workers' time), and other expenses like electricity or equipment. For example, if a toy company spends money on plastic, paint, and workers to make a toy, all these costs add up to the cost of production. Understanding this helps students see why businesses need to keep costs low to make money.

Understanding Selling Price

The selling price is the amount of money customers pay to buy a product. Businesses set the selling price based on how much it costs to make the product plus some extra money to earn a profit. For example, if it costs $5 to make a toy, the company might sell it for $8. The difference between the selling price and the cost of production is important for making profits.

How Cost of Production and Selling Price Affect Profits

Profit is the money a business makes after paying all its costs. If the selling price is higher than the cost of production, the business earns a profit. If the selling price is too low or the cost of production is too high, the business might lose money. For example, if a toy costs $5 to make and sells for $8, the profit is $3. But if the cost rises to $9 and the price stays $8, the business loses $1 on each toy. This relationship helps students understand why businesses try to control costs and set good prices.

Notable Entrepreneurs: Henry Ford and Sam Walton

Henry Ford and Sam Walton are examples of individuals who started new businesses and helped shape the U.S. free enterprise system. Henry Ford created the Ford Motor Company and made cars affordable for many people by improving production methods. Sam Walton started Walmart, a large retail store that sells many products at low prices. Learning about these entrepreneurs helps students connect economic ideas to real people and history.

Connecting to the Free Enterprise System

The free enterprise system allows people to start businesses and decide what to produce and sell. Businesses compete by offering good products at prices customers want to pay. Understanding costs, prices, and profits is important in this system because it helps businesses succeed and grow. Students can see how entrepreneurs like Ford and Walton used these ideas to build successful companies.

Worked Examples

Worked Example 1

Scenario

A toy costs $6 to make (cost of production). The toy sells for $10 (selling price). What is the profit?

Explanation

Profit is the selling price minus the cost of production. So, $10 - $6 = $4 profit. This means the business makes $4 on each toy sold.

Answer Guide

The profit is $4.

Worked Example 2

Scenario

If the cost of production for a toy increases to $8 but the selling price stays at $10, what happens to the profit?

Explanation

Profit is selling price minus cost. $10 - $8 = $2 profit. The profit decreases because the cost went up but the price stayed the same.

Answer Guide

The profit decreases to $2.

Engage

Teacher Activity

Show pictures of different products (e.g., toys, cars, clothes) and ask students what they think it costs to make them and how much they might sell for.

Student Activity

Discuss in pairs what they think makes a product expensive or cheap and share ideas with the class.

Explanation

This activity activates prior knowledge about costs and prices and introduces the idea that these affect how much money a business can make.

Examples

  • Students suggest materials, labor, or other factors that might affect cost.
  • Students recognize that prices vary and may guess reasons why.

Explore

Teacher Activity

Present simple examples showing the cost of production and selling price for a product. Use a chart to show how profit is calculated.

Student Activity

Work in small groups to calculate profits using different costs and prices provided by the teacher.

Explanation

This hands-on activity helps students practice calculating profit and see how changes in cost or price affect it.

Examples

  • Students correctly subtract cost from price to find profit.
  • Students notice that higher costs reduce profit if price stays the same.
  • Students suggest raising prices or lowering costs to increase profit.

Explain

Teacher Activity

Explain the terms cost of production, selling price, and profit clearly with examples. Introduce Henry Ford and Sam Walton as entrepreneurs who started businesses and used these ideas.

Student Activity

Take notes and ask questions about how these entrepreneurs succeeded and how costs and prices affected their businesses.

Explanation

Direct teaching clarifies key concepts and connects them to real-world examples of business founders.

Examples

  • Students can define cost, price, and profit.
  • Students can describe how Ford and Walton started businesses.

Elaborate

Teacher Activity

Guide students to create a simple timeline or chart showing Henry Ford and Sam Walton's contributions to business and how costs and prices influenced their success.

Student Activity

Work individually or in pairs to create the timeline or chart and present it to the class.

Explanation

This activity helps students organize information and make connections between economic concepts and historical figures.

Examples

  • Students correctly sequence events on the timeline.
  • Students explain how production and pricing helped these businesses grow.

Evaluate

Teacher Activity

Ask students to explain in their own words how the cost of production and selling price affect profits and to name at least two entrepreneurs who started new businesses.

Student Activity

Write a short paragraph or share orally their explanation and examples.

Explanation

This assessment checks students' understanding of the lesson's key concepts and their ability to connect them to real people.

Examples

  • Students provide clear explanations of profit related to cost and price.
  • Students name Henry Ford and Sam Walton.
  • Students understand profit helps businesses continue and grow.

Classroom Activity

Work in small groups to calculate profits using different costs and prices provided by the teacher.

Guided Practice

Guided Practice 1

Prompt

What is profit?

Teacher Answer Guide

Profit is the money a business makes after paying all the costs to produce a product.

Guided Practice 2

Prompt

How do cost of production and selling price affect profit?

Teacher Answer Guide

Profit is the selling price minus the cost of production. If the cost is high or the price is low, profit is less or negative.

Guided Practice 3

Prompt

Who was Henry Ford?

Teacher Answer Guide

Henry Ford was an entrepreneur who started the Ford Motor Company and made cars affordable by improving production.

Guided Practice 4

Prompt

Who was Sam Walton?

Teacher Answer Guide

Sam Walton was an entrepreneur who started Walmart, a large retail store that sells many products at low prices.

Guided Practice 5

Prompt

Why is profit important for a business?

Teacher Answer Guide

Profit helps a business continue to operate, pay workers, and grow.

Independent Practice

  1. Foundational: What does the term 'cost of production' mean?
  2. Developing: If a product costs $5 to make and sells for $7, how much profit does the business make?
  3. Application: Explain what happens to profit if the selling price stays the same but the cost of production increases.
  4. Analysis: Henry Ford made cars affordable by lowering production costs. How did this affect his profits and customers?
  5. Challenge: Compare how Henry Ford and Sam Walton used the ideas of cost, price, and profit to build their businesses.

Independent Practice Teacher Answer Key

  1. 1. It means the total money spent to make a product, including materials and labor.
  2. 2. The profit is $2 because $7 (selling price) minus $5 (cost) equals $2.
  3. 3. Profit decreases because the business spends more to make the product but earns the same amount from selling it.
  4. 4. Lower production costs allowed Ford to sell cars at lower prices while still making profits, which helped more customers buy cars.
  5. 5. Henry Ford lowered production costs to sell affordable cars and make profits, while Sam Walton offered many products at low prices to attract customers and grow Walmart. Both managed costs and prices to increase profits and business success.

Guiding Questions

  • What is the cost of production?
  • How does selling price affect profit?
  • Why do businesses want to make a profit?
  • Who are some people who started new businesses?
  • How did Henry Ford and Sam Walton help change business?

Common Misconceptions

  • Profit is the same as selling price; actually, profit is selling price minus cost of production.
  • Higher selling price always means more profit; profit depends on both selling price and cost of production.
  • Entrepreneurs only make money easily; they must manage costs and prices carefully to succeed.

Differentiation

Support and Intervention

Use simple examples with familiar products to explain cost, price, and profit. Provide sentence starters for writing explanations. Use visuals and charts to support understanding.

English-Language Learner Support

Use pictures and realia to explain vocabulary. Speak slowly and clearly with simple sentences. Pair ELL students with peers for discussion and support.

Advanced and Extension

Research other entrepreneurs who started businesses and present their stories. Create a detailed chart showing different costs and prices for various products. Write a short report explaining how profits affect business decisions.

Assessment

  • Observe students during group profit calculations to check understanding.
  • Ask students to explain cost, price, and profit during discussions.
  • Review timelines or charts created about entrepreneurs.
  • Write one sentence explaining how cost of production affects profit.
  • Name one entrepreneur who started a new business.
  • Write a paragraph explaining how selling price and cost of production affect profits, using examples.
  • Create a timeline showing important events in the lives of Henry Ford and Sam Walton.

Answer Guide

  • What is profit?
    Answer: Profit is the money a business makes after paying all the costs to produce a product.
  • How do cost of production and selling price affect profit?
    Answer: Profit is the selling price minus the cost of production. If the cost is high or the price is low, profit is less or negative.
  • Who was Henry Ford?
    Answer: Henry Ford was an entrepreneur who started the Ford Motor Company and made cars affordable by improving production.
  • Who was Sam Walton?
    Answer: Sam Walton was an entrepreneur who started Walmart, a large retail store that sells many products at low prices.
  • Why is profit important for a business?
    Answer: Profit helps a business continue to operate, pay workers, and grow.

Real-Life Application

Encourage students to talk with their family about a product they recently bought and discuss what might have gone into the cost and price of that product.

Homework or Home Connection

  • Encourage students to talk with their family about a product they recently bought and discuss what might have gone into the cost and price of that product.

Lesson Summary

In this lesson, students learned that the cost of production is the money spent to make a product, and the selling price is what customers pay. The difference between these two is profit, which is important for businesses to succeed. They also learned about entrepreneurs like Henry Ford and Sam Walton, who started new businesses and used these ideas to grow their companies in the U.S. free enterprise system.

Teacher Notes

Use the exact standards alignment and retrieved-source provenance stored with this enrichment.

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