Class: Senior Secondary School 1 (SS1 / SSS 1)
Term: Second Term
Week: 1
Age: 15 years
Duration: 45 minutes
Subject: Radio, Tv & Electronics
Curriculum Theme: Trade
Previous Lesson: .
Topic: MEANING OF ELECTRONICS AND ELECTRONIC CIRCUIT.
Subject Matter: Definition of electronics, Definition of electronic circuit

Specific Objectives

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

Cognitive Domain:

Define electronics.
Define an electronic circuit.
State basic components of a simple electronic circuit.

Affective Domain:

Appreciate the importance of electronics in daily life.
Show interest in learning about electronic components.

Psychomotor Domain:

Identify components in a simple electronic circuit diagram.
Draw a basic representation of a simple electronic circuit.

Discuss the applications of electronics with peers.
Collaborate in identifying electronic components.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Radio, TV and Electronics.
State Unified Scheme of Work for Senior Secondary Schools.
Basic Electronics by B.L. Theraja.
https://www.allaboutcircuits.com
https://www.electronics-tutorials.ws

Instructional Materials

The teacher will teach this lesson with the aid of:

A simple circuit model (e.g., battery, wires, LED).
An electronic diagram (e.g., a simple series or parallel circuit).
Whiteboard and markers.

Rationale for the Lesson

This lesson helps pupils understand the fundamental concepts of electronics and electronic circuits, which are essential building blocks for modern technology. Understanding these basics enables pupils to grasp how many devices they use daily function and prepares them for more advanced topics in the subject.

Prerequisite/Previous Knowledge

Pupils have a basic understanding of electricity and its flow in simple circuits from their junior secondary school science classes.

Lesson Content/Board Summary

MEANING OF ELECTRONICS AND ELECTRONIC CIRCUIT

Definition of Electronics

Electronics is the branch of science and technology that deals with the control of electric current through various devices, typically semiconductors, to process, transmit, and store information or energy. It involves the study of the behaviour and effects of electrons in electronic devices and systems.

Definition of Electronic Circuit

An electronic circuit is a path made of electronic components through which electric current can flow to perform a specific function. It is a collection of individual electronic components, such as resistors, transistors, capacitors, and diodes, connected by conductive wires or traces through which electric current can flow.

The following are basic components of a simple electronic circuit:

Power Source: This supplies the electrical energy (e.g., battery, power supply).
Conductors: These are materials (e.g., copper wires) that allow electric current to flow easily.
Load/Component: This is the device that uses the electrical energy to perform a task (e.g., light bulb, LED, resistor).

The following are common types of electronic circuits:

Series Circuit: In a series circuit, components are connected one after another, forming a single path for the electric current to flow.
Parallel Circuit: In a parallel circuit, components are connected across each other, providing multiple paths for the electric current to flow.

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, reviews the previous lesson briefly, and then introduces the new topic by asking pupils to name some electronic gadgets they use daily (e.g., phone, TV, radio). The teacher then links these to the concept of electronics and electronic circuits.
Pupils’ Activity: Pupils respond to questions and listen attentively.
Learning Point: Pupils are prepared for the new lesson and understand its relevance.

Step 2: Definition of Electronics

Time: 10 minutes
Teaching Skill: Explanation/Definition
Teacher’s Activity: The teacher defines electronics, explaining that it is about controlling electrons to do useful work. The teacher writes the definition on the board and gives examples of electronic devices.
Pupils’ Activity: Pupils listen, ask questions for clarification, and copy notes from the board.
Learning Point: Pupils understand the meaning of electronics.

Step 3: Discussion on Applications of Electronics

Time: 5 minutes
Teaching Skill: Questioning/Engagement
Teacher’s Activity: The teacher asks pupils to mention various areas where electronics are applied, such as communication, entertainment, medicine, and industries.
Pupils’ Activity: Pupils contribute ideas and examples based on their observations and knowledge.
Learning Point: Pupils appreciate the broad applications and importance of electronics.

Step 4: Definition of Electronic Circuit

Time: 10 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher defines an electronic circuit and explains that it is a complete path for current. The teacher uses the simple circuit model and an electronic diagram to illustrate how components are connected and the basic parts of a circuit (source, conductor, load).
Pupils’ Activity: Pupils observe the demonstration, ask questions, and copy the definition and components from the board.
Learning Point: Pupils understand what an electronic circuit is and its basic components.

Step 5: Types of Electronic Circuits

Time: 5 minutes
Teaching Skill: Explanation
Teacher’s Activity: The teacher briefly explains the difference between series and parallel circuits using simple diagrams on the board.
Pupils’ Activity: Pupils listen and observe the diagrams.
Learning Point: Pupils can differentiate between series and parallel circuits.

Step 6: Practical Identification

Time: 5 minutes
Teaching Skill: Practical Application
Teacher’s Activity: The teacher presents the simple circuit model and the electronic diagram again, pointing to different parts and asking pupils to identify them (e.g., “What is this?,” “What does this symbol represent?”).
Pupils’ Activity: Pupils identify the components and symbols shown by the teacher.
Learning Point: Pupils can identify basic electronic components and their symbols.

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 electronics.
What is an electronic circuit?
Mention three basic components found in a simple electronic circuit.
State two common types of electronic circuits.

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/Assignment
Teacher’s Activity: The teacher summarizes the key points of the lesson, reiterating the definitions of electronics and electronic circuits and their importance. The teacher then gives an assignment for pupils to research practical applications of series and parallel circuits.
Pupils’ Activity: Pupils listen to the summary and copy the assignment.
Learning Point: Pupils consolidate their learning and prepare for further study.

Lesson Keywords

Electronics – The branch of science and technology dealing with the control of electron flow.
Electronic Circuit – A complete path for electric current through connected electronic components.
Series Circuit – A circuit where components are connected one after another.
Parallel Circuit – A circuit where components are connected across each other, providing multiple paths.
Conductor – A material that allows electric current to flow easily.
Load – A component that uses electrical energy to perform a function.

Differentiation

For pupils who grasp concepts quickly, the teacher can challenge them to sketch a simple electronic circuit diagram. For pupils who need more support, the teacher will provide additional examples and visual aids and ensure one-on-one clarification.

Note for teachers using this lesson plan

Teachers should ensure they have functional simple circuit models and clear diagrams. Encourage pupils to relate the concepts to everyday electronic devices to make the lesson more engaging and practical. Emphasise safety when discussing electrical components.