Class: Junior Secondary School 2 (JSS2, JSS 2)
Term: 1st Term
Week: 3
Age: 13 years
Duration: 45 minutes
Subject: Basic Science And Technology
Curriculum Theme: Computer Studies
Previous Lesson: Components of a Computer System: Hardware, Software, and Peopleware
Topic: Hardware Components
Subject Matter: Definition of hardware components, Input devices, Output devices, Storage devices, Arithmetic logic unit.

Specific Objectives

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

Cognitive Domain:
(a) Define hardware components.
(b) Identify examples of input, output, and storage devices.
(c) Explain the function of the Arithmetic Logic Unit (ALU).
Affective Domain:
(a) Show appreciation for the role of hardware in computer operations.
(b) Develop interest in caring for and properly handling computer hardware.
Psychomotor Domain:
(a) Demonstrate the use of basic input devices such as keyboard and mouse.
(b) Practice saving and retrieving files using storage devices.
Social Domain:
(a) Work in groups to classify hardware components according to their functions.

Reference Materials

The following resources was used in planning this lesson:

9 Years Basic Education Curriculum
Lagos State Unified Scheme of work for Junior Secondary Schools
TechTarget – “What is an Arithmetic Logic Unit (ALU)?” (https://www.techtarget.com/whatis/definition/arithmetic-logic-unit-ALU)
Relevant Textbooks

Instructional Materials

The teacher will teach this lesson with the aid of:

A desktop or laptop computer
Charts of computer hardware components
Keyboard, mouse, monitor, speakers, and flash drive for demonstration
Projector or slides showing ALU functions
Whiteboard and markers

Rationale for the Lesson

This lesson is important because understanding hardware components helps students know how computers function and prepares them for practical computer usage.

Prerequisite/Previous Knowledge

Pupils have seen and used computers before and are familiar with the idea that computers require physical parts to function.

Lesson Content/Board Summary

Hardware Components

Hardware refers to the physical parts of the computer that can be seen and touched. It includes devices used to input, process, store, and output information.

Input Devices

Input devices are hardware components that allow users to enter data and instructions into a computer system.

Examples include:

Keyboard
Mouse
Scanner
Microphone
Joystick

Output Devices

Output devices are hardware components that display, project, or produce the results of computer processing.

The following are examples of output devices:

Monitor
Printer
Speaker
Projector
Headphones

Storage Devices

Storage devices are hardware components used to save data permanently or temporarily for future use.

Examples include:

Hard disk drive (HDD)
Solid-state drive (SSD)
Compact disc (CD)
Flash drive
Memory card

Arithmetic Logic Unit (ALU)

The Arithmetic Logic Unit is a part of the central processing unit (CPU) responsible for performing mathematical calculations and logical comparisons.

The following are functions of the ALU:

Performs addition, subtraction, multiplication, and division.
Compares data values and makes decisions.
Executes logical operations such as AND, OR, and NOT.
Helps in data processing and manipulation inside the CPU.

Teaching Methods/Instructional Techniques:

Discussion, Lecture, Explanation, Demonstration, Group Work, Question and Answer, Use of Visual Aids

Instructional Procedures

To deliver this lesson, the teacher will adopt the following steps:

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: Teacher displays a computer system and asks pupils to mention the physical parts they can see.
Pupils’ Activity: Pupils respond by naming parts such as keyboard, mouse, and monitor.
Learning Point: Pupils are introduced to the lesson on hardware components.

Step 2: Input Devices

Time: 8 minutes
Teaching Skill: Explanation
Teacher’s Activity: Teacher defines input devices and shows real-life examples like keyboard and mouse.
Pupils’ Activity: Pupils observe and identify the devices.
Learning Point: Pupils understand the function and examples of input devices.

Step 3: Output Devices

Time: 7 minutes
Teaching Skill: Discussion
Teacher’s Activity: Teacher explains output devices and demonstrates their use with a monitor and speakers.
Pupils’ Activity: Pupils listen and mention other output devices they know.
Learning Point: Pupils learn examples and importance of output devices.

Step 4: Storage Devices and ALU

Time: 10 minutes
Teaching Skill: Explanation and Demonstration
Teacher’s Activity: Teacher explains storage devices with samples like flash drive, CD, and HDD. Teacher also explains the Arithmetic Logic Unit with charts and diagrams.
Pupils’ Activity: Pupils examine storage devices and listen attentively to ALU functions.
Learning Point: Pupils learn examples of storage devices and the role of the ALU in processing data.

Step 5: Note-Taking

Time: 5 minutes
Teaching Skill: Explanation
Teacher’s Activity: Teacher writes or dictates the board summary for pupils to copy.
Pupils’ Activity: Pupils copy the notes neatly into their exercise books.
Learning Point: Pupils have written notes on hardware components.

Step 6: Evaluation/Review

Time: 5 minutes
Teaching Skill: Questioning
Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

Define hardware.
List three examples of input devices.
Mention two examples of output devices.
Give two examples of storage devices.
State two functions of the Arithmetic Logic Unit.
Pupils’ Activity: Pupils respond orally to the questions.
Learning Point: Pupils show mastery of the lesson objectives.

Step 7: Conclusion

Time: 2 minutes
Teaching Skill: Reinforcement
Teacher’s Activity: Teacher summarizes the lesson and encourages pupils to practice identifying hardware components in their computer lab.
Pupils’ Activity: Pupils listen attentively and ask questions where necessary.
Learning Point: Pupils appreciate the importance of hardware components in computing.

Lesson Keywords

Hardware – physical parts of the computer
Input Devices – tools for entering data into the computer
Output Devices – hardware that shows results of processing
Storage Devices – hardware that keeps data permanently or temporarily
Arithmetic Logic Unit (ALU) – part of the CPU that performs calculations and logic operations

Differentiation

Teacher uses real objects and visual aids for slower learners, while advanced learners are tasked to explain the role of hardware in different computer systems.

Note for teachers using this lesson plan

Ensure to use real hardware devices for better understanding. Encourage pupils to handle the devices carefully and explain how each contributes to the functioning of the computer.