Class: Senior Secondary School 1 (SS1 / SSS 1)
Term: 1st Term
Week: 8
Age: 15 years
Duration: 45 minutes
Subject: Book Keeping
Curriculum Theme: Trade
Previous Lesson: Debtors and Creditors: Meaning and Differences Between Debtors and Creditors.
Topic: Source documents
Subject Matter: Meaning of source documents, Types of source documents

Specific Objectives

By the end of the lesson, pupils should be able to:

Cognitive Domain:

Define source documents.
List at least four types of source documents.
Explain the importance of source documents in business.

Affective Domain:

Appreciate the role of source documents in maintaining accurate financial records.
Show interest in identifying different source documents.

Psychomotor Domain:

Identify various specimen source documents.
Classify different source documents based on their purpose.

Participate actively in discussions about different source documents.
Work collaboratively to identify and discuss examples of source documents.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Senior Secondary Schools.
State Unified Scheme of Work for Senior Secondary Schools.
Book Keeping for Senior Secondary Schools by O. A. Longe.
https://education.gov.ng/curriculum/
https://www.waeconline.org.ng/

Instructional Materials

The teacher will teach this lesson with the aid of:

Specimen source documents (e.g., invoices, receipts, payment vouchers, cheques, debit notes, credit notes, pay-in slips).
Whiteboard or chalkboard.
Markers or chalk.

Rationale for the Lesson

This lesson helps pupils understand the basic documents that support all business transactions. Knowing about source documents enables pupils to appreciate how financial records are accurately started and why they are important for accountability in daily business activities.

Prerequisite/Previous Knowledge

Pupils have basic knowledge of business transactions and the need for records in a business.

Lesson Content/Board Summary

Source Documents

Meaning of Source Documents

Source documents are original written evidence of business transactions. They provide the details needed to record transactions in the books of account. They serve as proof that a transaction has occurred and are essential for auditing and verifying financial entries.

Types of Source Documents

The following are common types of source documents:

Invoice: A document sent by a seller to a buyer, requesting payment for goods or services delivered. It shows details like quantity, description, unit price, and total amount.
Receipt: A document issued by the seller to the buyer as proof that payment has been received for goods or services.
Payment Voucher: An internal document used to authorize and record cash payments made by a business.
Cheque: A written, dated, and signed instruction to a bank to pay a stated sum of money to a specified person or entity.
Debit Note: A document issued by a seller to correct an understatement in an invoice or to notify a buyer of an increase in the amount owed.
Credit Note: A document issued by a seller to a buyer to correct an overstatement in an invoice, often due to returned goods or an error, resulting in a reduction of the amount owed.
Pay-in Slip: A document used to deposit cash or cheques into a bank account.

Teaching Methods/Instructional Techniques

Discussion, Lecture, Demonstration, Question and Answer, Visual Aids

Instructional Procedures

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher greets the pupils and asks them about the importance of keeping records in any activity, like keeping score in a game or noting down purchases. The teacher then links this to business transactions and the need for evidence.
Pupils’ Activity: Pupils respond to the questions and share their ideas about record-keeping.
Learning Point: Pupils are prepared for the lesson and understand the context of record-keeping in business.

Step 2: Presentation of Subject Matter

Time: 5 minutes
Teaching Skill: Explanation/Introduction
Teacher’s Activity: The teacher introduces the topic “Source Documents” and writes it on the board. The teacher explains that these are the first records generated when a business transaction occurs.
Pupils’ Activity: Pupils listen attentively and copy the topic into their notebooks.
Learning Point: Pupils understand what source documents are and their role in recording transactions.

Step 3: Explanation of Meaning

Time: 10 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher defines source documents, emphasizing that they are original evidence. The teacher displays various specimen source documents (e.g., receipt, invoice) and explains that each document provides specific details about a transaction.
Pupils’ Activity: Pupils listen, observe the specimen documents, and ask questions for clarification. They copy the definition from the board.
Learning Point: Pupils learn the definition of source documents and see practical examples.

Step 4: Discussion of Types of Source Documents

Time: 10 minutes
Teaching Skill: Guided Discussion/Identification
Teacher’s Activity: The teacher presents different types of source documents one by one, explaining the purpose of each (e.g., invoice for credit sales, receipt for cash payment, cheque for bank payment). The teacher encourages pupils to examine the specimens.
Pupils’ Activity: Pupils observe, listen to explanations, and identify the specific features of each document. They may ask questions about their uses.
Learning Point: Pupils identify and understand the purpose of various source documents.

Step 5: Practical Identification

Time: 5 minutes
Teaching Skill: Practical Application
Teacher’s Activity: The teacher distributes a few mixed specimen source documents to groups of pupils and asks them to identify each document and state its use.
Pupils’ Activity: Pupils in groups identify the documents and discuss their uses. A representative from each group shares their findings.
Learning Point: Pupils apply their knowledge to practically identify and classify source documents.

Step 6: Importance of Source Documents

Time: 5 minutes
Teaching Skill: Elaboration
Teacher’s Activity: The teacher briefly discusses the importance of source documents, such as providing evidence for transactions, preventing fraud, and aiding in auditing.
Pupils’ Activity: Pupils listen and note down the importance points.
Learning Point: Pupils understand why source documents are essential for businesses.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

Define source documents.
Mention four types of source documents.
State one importance of source documents.
Distinguish between an invoice and a receipt.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 5 minutes
Teaching Skill: Summarization/Consolidation
Teacher’s Activity: The teacher summarizes the key points of the lesson, reiterating the definition and types of source documents. The teacher assigns homework: “List five business transactions and state the source document that would be used for each.”
Pupils’ Activity: Pupils listen to the summary and copy the homework assignment.
Learning Point: Pupils consolidate their understanding of the lesson.

Lesson Keywords

Source Document – Original written evidence of a business transaction.
Invoice – A bill for goods or services provided, requesting payment.
Receipt – Proof of payment received.
Payment Voucher – Document authorizing and recording a cash payment.
Cheque – A written order to a bank to pay a specified amount.
Debit Note – A document notifying an increase in an amount owed.
Credit Note – A document notifying a decrease in an amount owed.

Differentiation

For pupils who grasp concepts quickly, the teacher can ask them to explain how a specific source document would be used in a real-life business scenario. For pupils needing more support, the teacher can provide additional labelled examples of source documents and work closely with them to identify and describe each one.

Note for teachers using this lesson plan

Encourage pupils to bring real-life examples of source documents from their homes (e.g., electricity bills, shop receipts) to make the lesson more relatable. Ensure that the specimen documents are clear and easy for pupils to understand. Emphasize that source documents are the foundation for all accounting entries.