Lesson Notes By Weeks and Term v5 - Grade 7

Lesson Video

This page supports the lesson note with a companion video and a short classroom-ready summary.

For class groups and homework, share this lesson page so learners also get the summary, objectives, and full lesson context.

Performance objectives

• Define 'saving,' 'bank,' and 'interest'.
• Identify different reasons why people save money.
• Describe the basic functions of a bank.
• Explain the difference between simple and compound interest.
• Calculate simple interest on savings.

Lesson summary

This week, we embark on a journey into the world of financial literacy, focusing on saving, banks, and interest. Understanding these concepts is crucial for every young South African as it empowers you to make informed decisions about your money, now and in the future. Imagine being able to save up for that new soccer ball, a ticket to a concert, or even contributing towards your education! Financial literacy isn't just about money; it's about having the power to control your future. Many South Africans struggle with debt and financial insecurity, and understanding these basic principles now will give you a significant advantage.

Lesson notes

What is Saving? Saving is the act of setting aside money for future use. Instead of spending all your money immediately, you keep some of it aside to achieve a specific goal or prepare for unexpected events. Saving isn't just about keeping money in a piggy bank. It’s about making a conscious decision to delay gratification and plan for the future. In South Africa, saving can help you afford necessities, pay for education, or even start your own business someday. Why do people save? People save for a variety of reasons, including: Future goals: To buy something big, like a bicycle, a phone, or to contribute towards further education.

Emergencies: To cover unexpected expenses like medical bills, car repairs (for older family members), or household repairs.

Security: To have a financial safety net in case of job loss or other unforeseen circumstances.

Investments: To grow their wealth over time through investments like property or shares (which we will cover in later grades).

Retirement: To ensure they have enough money to live on when they are old and no longer working. What is a Bank? A bank is a financial institution that accepts deposits from the public and creates credit. It’s a safe place to store your money. Banks use the money deposited by customers to make loans to other customers or businesses. Banks in South Africa, like ABSA, FNB, Standard Bank, and Nedbank, play a crucial role in the economy.

Key functions of a bank: Accepting Deposits: Banks allow you to deposit your money securely into various accounts.

Providing Loans: Banks lend money to individuals and businesses for various purposes, such as buying a house, starting a business, or paying for education.

Facilitating Payments: Banks allow you to easily transfer money to others using cheques, debit cards, credit cards, and electronic transfers (like EFTs).

Providing Financial Services: Banks offer a range of other financial services, such as foreign exchange, investment advice, and insurance. What is Interest? Interest is the cost of borrowing money or the reward for saving money. When you deposit money into a savings account at a bank, the bank pays you interest for the use of your money. This is because the bank is using your money to lend to others. Conversely, when you borrow money from a bank (e.g., a loan), you pay interest to the bank for the privilege of using their money. Interest is usually expressed as a percentage per year (e.g., 5% per annum).

Types of Interest (Introduction): We'll focus on simple interest this week. Simple interest is calculated only on the principal amount (the initial amount you deposit or borrow). In contrast, compound interest is calculated on the principal amount and the accumulated interest from previous periods. We will explore compound interest in more detail in later grades.

Simple Interest Formula: Simple Interest = Principal (P) x Rate (R) x Time (T)

Principal (P): The initial amount of money deposited or borrowed.

Rate (R): The annual interest rate (expressed as a decimal). To convert a percentage to a decimal, divide by 100 (e.g., 5% = 0.05).

Time (T): The duration of the deposit or loan, in years.

Example 1: Ayanda deposits R500 into a savings account that pays simple interest at a rate of 4% per annum. How much interest will she earn after 3 years? Principal (P) = R500 Rate (R) = 4% = 0.04 Time (T) = 3 years Simple Interest = R500 x 0.04 x 3 = R60 Ayanda will earn R60 in interest after 3 years.

Example 2: Sipho borrows R2000 from a friend and agrees to pay simple interest at a rate of 10% per annum. If he repays the loan after 6 months (0.5 years), how much interest will he pay? Principal (P) = R2000 Rate (R) = 10% = 0.10 Time (T) = 0.5 years (6 months = 0.5 years) Simple Interest = R2000 x 0.10 x 0.5 = R100 Sipho will pay R100 in interest.

Example 3: Zanele invests R1000 in a fixed deposit account for 5 years at a simple interest rate of 6% per annum. What will be the total amount in her account after 5 years? Principal (P) = R1000 Rate (R) = 6% = 0.06 Time (T) = 5 years Simple Interest = R1000 x 0.06 x 5 = R300 Total amount = Principal + Simple Interest = R1000 + R300 = R1300 Zanele will have R1300 in her account after 5 years. Guided Practice (With Solutions)

Question 1: Thabo saves R200 in a bank account. The bank offers a simple interest rate of 5% per year. How much interest will Thabo earn after 2 years?

Solution: Principal (P) = R200 Rate (R) = 5% = 0.05 Time (T) = 2 years Simple Interest = R200 x 0.05 x 2 = R20 Thabo will earn R20 in interest after 2 years. The key here is identifying the principal, rate, and time correctly and applying the formula.

Question 2: Aisha's mother borrows R5000 from the bank for home improvements. The simple interest rate is 8% per year. She plans to repay the loan in 3 years. How much interest will she pay in total?