Lesson Plan | Technical Methodology | Value Equivalence: Discount and Exchange

Objectives

Duration: 10 - 15 minutes

The purpose of this stage is to provide students with a clear understanding of the concepts of change and discount, essential skills for everyday life and the job market. Developing these practical skills early on helps students become conscious consumers and prepared to handle financial transactions efficiently.

Main Objectives

1. Understand the concept of change and its practical application in buying and selling situations.

2. Comprehend how to calculate discounts on goods purchased in cash.

Side Objectives

1. Develop basic mathematical skills related to subtraction and percentage.
2. Encourage logical reasoning and the resolution of practical problems.

Introduction

Duration: 15 - 20 minutes

The aim of this stage is to engage students in the topic by connecting the content with real-life situations they may have experienced. This will help spark interest and motivation to learn the concepts of change and discount, preparing them for the practical activities to follow.

Contextualization

Let's imagine that you are at the bakery buying a bread roll. The price of the bread is R$ 5.00. You hand a R$ 10.00 bill to the cashier. How much change should you receive? And if the bread had a 10% discount for being a loyal customer, how much would you pay? Understanding how to calculate change and discounts is an essential skill for our daily lives, both for buyers and sellers.

Curiosities and Market Connection

Did you know that knowing how to calculate discounts and change is a highly valued skill in the job market? Professionals working in stores, supermarkets, bakeries, and even large companies need to master these calculations to ensure that transactions are conducted correctly. In addition, these skills help avoid mistakes that can harm the business and customer satisfaction.

Initial Activity

To start, let's watch a short video that shows what it's like to be a supermarket cashier and the importance of correctly calculating change and discounts: [Link to the video]. After the video, ask the students: 'Have you ever helped someone calculate change or seen someone doing it? How was that?'

Development

Duration: 60 - 65 minutes

The purpose of this stage is to allow students to practice and apply the concepts of change and discount in simulated situations, promoting active and collaborative learning. The practical activities and fixation exercises ensure that students can internalize and use the knowledge effectively in real contexts.

Covered Topics

1. Concept of change
2. Concept of discount
3. Calculation of change
4. Calculation of discount

Reflections on the Theme

Guide students to reflect on the importance of knowing how to calculate change and discounts, not only for buying situations but also as a fundamental skill in the job market. Ask: 'How do you think these skills can help you in your future lives? In which professions do you think this is important?'

Mini Challenge

Mini Challenge: The Math Store

Students will simulate a buying and selling experience in a small store set up in the classroom. They will work in pairs, where one student will be the 'customer' and the other will be the 'seller.'

Instructions

1. Divide the class into pairs and distribute fake money (bills and coins) to each student.
2. Set up a small store in the classroom with various items, each with a posted price.
3. Explain that some items are discounted and label them with colored tags indicating the discount percentage.
4. The 'customers' should choose items to buy and calculate the total to be paid, including discounts.
5. The 'sellers' should calculate the change to be returned to the 'customer.'
6. After each purchase, students should switch roles and repeat the activity.

Objective: Develop the practical skill of calculating change and discounts in a buying and selling situation, encouraging the application of acquired knowledge in an interactive and fun way.

Duration: 30 - 35 minutes

Evaluation Exercises

1. Calculate the change: If you buy an item that costs R$ 7.50 and pay with a R$ 10.00 bill, how much change will you receive?
2. Calculate the discount: If an item costs R$ 20.00 and has a 15% discount, what will be the final price of the item?
3. Calculate the change and the discount: You buy an item for R$ 50.00 with a 10% discount and pay with a R$ 100.00 bill. How much change will you receive?
4. Group challenge: Split the class into small groups and distribute different buying scenarios with change and discounts for them to solve together. Each group should present their solutions to the class.

Conclusion

Duration: 10 - 15 minutes

The aim of this stage is to consolidate learning, ensuring that students understand the importance of the concepts taught and how to apply them in real situations. Reflection and discussion allow students to internalize the knowledge and recognize the practical relevance of the acquired skills.

Discussion

To conclude the class, promote a discussion with the students about what they learned. Ask: 'What was the most challenging part of calculating change and discounts? How did you feel simulating a real purchase in the store?' Encourage students to share their experiences and reflections on the importance of these skills in everyday life and in various professions.

Summary

Recap the main content covered during the class, such as the concept of change, the concept of discount, and the methods to calculate both. Remind students of the practical activities they engaged in and how these reinforced the theoretical concepts.

Closing

Explain to students how the class connected theory with practice through the buying and selling simulations. Highlight the relevance of these skills for everyday life, mentioning how knowing how to calculate change and discounts can help in common situations and in the job market. Emphasize the importance of being conscious consumers and prepared to handle financial transactions.