First Term Computer Hardware and GSM Repairs revision for SS 1

Class: SS 1
Term: First Term
Week: 11
Age: 15 years
Duration: 60 minutes
Subject: Computer Hardware and GSM Repairs
Curriculum Theme: Revision
Focal competence: Integration of the term’s curriculum competencies
Key competencies/values: Critical Thinking; Communication
Skills:

• Curriculum skills covered in Weeks 1-10
• Problem-solving
• Analytical thinking
• Practical application

Previous Lesson: Unlocking Mobile Phones with Network Issues and Testing the Network
Topic: Revision and Consolidation
Subject Matter: core term topics, taught skills, common misconceptions, revision exercises

Specific Objectives

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

Cognitive Domain

• Recall the key concepts taught during the term.
• Identify common misconceptions related to computer hardware and GSM repairs.

Psychomotor Domain

• Apply the term’s knowledge and skills in written tasks.
• Demonstrate understanding of basic hardware identification through oral responses.

Social Domain

• Participate actively in revision exercises and discussions.

Reference Materials

The following resources were used in planning this lesson:

• 2025 New Revised Senior Secondary Education Curriculum (SSEC)
• Relevant State Unified Scheme of Work
• Approved Computer Hardware and GSM Repairs textbook for SS 1
• The HeadTeacher Scheme of work For The New Revised Senior Secondary Education Curriculum (SSEC)

Instructional Materials

The teacher will teach this lesson with the aid of:

• Class notes
• Approved textbooks
• Past questions/revision exercises
• Whiteboard and markers
• Charts showing computer components (optional)

Rationale for the Lesson

This revision lesson is essential for reinforcing students’ understanding of foundational concepts in Computer Hardware and GSM Repairs. It provides an opportunity to revisit challenging topics, correct misconceptions, and consolidate learned skills. A thorough review ensures students are well-prepared for assessments and have a strong base for future learning in the subject.

Prerequisite/Previous Knowledge

Students should have prior knowledge of the basic concepts of computer hardware, its components, and an introduction to GSM phone parts, as covered in the previous weeks of the First Term.

Lesson Content/Board Summary

Revision and Consolidation of First Term Topics

Basic Computer Hardware Components

Computer hardware refers to the physical components of a computer system. These components work together to perform various tasks. They can be broadly categorized into:

1. Input Devices: Used to enter data and instructions into the computer.
   1. Keyboard (for text and commands)
   2. Mouse (for pointing and clicking)
   3. Scanner (for converting physical documents to digital)
   4. Microphone (for audio input)
   5. Webcam (for video input)
2. Output Devices: Used to display or present processed data from the computer.
   1. Monitor (for visual display)
   2. Printer (for hard copy output)
   3. Speakers (for audio output)
   4. Projector (for large-screen display)
3. Processing Devices: The “brain” of the computer that executes instructions and processes data.
   1. Central Processing Unit (CPU): Performs calculations and manages overall computer operations.
4. Storage Devices: Used to store data and programs permanently or temporarily.
   1. Hard Disk Drive (HDD) / Solid State Drive (SSD): Primary long-term storage.
   2. Random Access Memory (RAM): Temporary storage for currently running programs and data.
   3. Flash Drive/USB Drive: Portable storage.
   4. Optical Discs (CD/DVD/Blu-ray): Older forms of portable storage.

Types of Computers

Computers come in various forms, each designed for specific purposes:

1. Desktop Computers: Stationary computers with separate components (monitor, keyboard, mouse, system unit).
2. Laptop Computers: Portable computers that integrate all components into a single unit.
3. Tablets: Ultra-portable devices with touchscreens, often without physical keyboards.
4. Smartphones: Mobile phones with advanced computing capabilities, functioning as mini-computers.
5. Servers: Powerful computers designed to provide services and resources to other computers over a network.

Safety Precautions in Hardware Repair

When working with computer hardware, it is important to observe safety precautions to prevent injury and damage to components:

1. Always disconnect power before opening a computer casing.
2. Wear an anti-static wrist strap to prevent electrostatic discharge (ESD) which can damage sensitive components.
3. Work in a well-lit and ventilated area.
4. Use appropriate tools for each task (e.g., correct screwdriver size).
5. Avoid touching electronic components directly with bare hands; hold by the edges.
6. Keep liquids away from electronic devices.
7. Ensure proper grounding of electrical outlets.
8. Handle components carefully to avoid physical damage.

Basic GSM Phone Components

A Global System for Mobile Communications (GSM) phone consists of several key components that enable its functionality:

1. Display Screen: Shows information, allows user interaction (touchscreen).
2. Keypad/Touchscreen: For inputting numbers, text, and commands.
3. Battery: Provides power to the phone.
4. Motherboard/Printed Circuit Board (PCB): The main board containing the CPU, memory, and other integrated circuits.
5. Antenna: For sending and receiving radio signals.
6. Microphone: For capturing voice during calls.
7. Speaker/Earpiece: For outputting audio.
8. SIM Card Slot: Holds the Subscriber Identity Module card for network access.
9. Camera: For capturing photos and videos.
10. Charging Port: For connecting the charger.

Teaching Methods/Instructional Techniques

Discussion, Question and Answer, Explanation, Guided Recall, Practical Demonstration (discussion-based)

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Review/Motivation

Teacher’s Activity: The teacher welcomes the students and informs them that the lesson is a revision of key topics covered in the First Term. The teacher briefly explains the importance of revision for consolidating knowledge and preparing for examinations.

Pupils’ Activity: Students listen attentively and prepare for the revision session.

Learning Point: Term revision importance

Step 2: Review of Basic Computer Hardware Components

Time: 10 minutes

Teaching Skill: Questioning/Explanation

Teacher’s Activity: The teacher asks students to recall and identify different categories of computer hardware components (input, output, processing, storage) and provide examples for each. The teacher clarifies any misconceptions and provides brief explanations where necessary.

Pupils’ Activity: Students recall and list examples of computer hardware components.

Learning Point: Computer hardware recall

Step 3: Discussion on Types of Computers

Time: 8 minutes

Teaching Skill: Discussion/Clarification

Teacher’s Activity: The teacher leads a discussion on the various types of computers, asking students to differentiate between them (e.g., desktop vs. laptop, smartphone vs. tablet). The teacher highlights their primary uses.

Pupils’ Activity: Students participate in the discussion, differentiating computer types.

Learning Point: Computer types differentiation

Step 4: Reinforcement of Safety Precautions

Time: 10 minutes

Teaching Skill: Emphasis/Practical Guidance

Teacher’s Activity: The teacher emphasizes the critical importance of safety precautions when handling computer hardware. The teacher asks students to list and explain various safety measures, such as disconnecting power, using anti-static straps, and proper tool usage. The teacher corrects any errors in understanding.

Pupils’ Activity: Students list and explain safety precautions in hardware repair.

Learning Point: Hardware repair safety

Step 5: Review of Basic GSM Phone Components

Time: 8 minutes

Teaching Skill: Recall/Identification

Teacher’s Activity: The teacher prompts students to recall and identify the basic components of a GSM phone. The teacher may draw a simple diagram on the board or refer to a chart to aid visual recall, ensuring all key parts are mentioned.

Pupils’ Activity: Students identify and name basic GSM phone components.

Learning Point: GSM components identification

Step 6: Revision Exercises and Application

Time: 10 minutes

Teaching Skill: Guided Practice/Problem Solving

Teacher’s Activity: The teacher distributes short revision exercises or presents past questions related to the topics discussed. The teacher guides students to attempt the questions, providing support and clarification as needed. This could include questions requiring identification, definition, or application of concepts.

Pupils’ Activity: Students complete the revision exercises individually or in pairs.

Learning Point: Knowledge application practice

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

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

1. List two input devices and two output devices.
2. State three safety precautions to observe when repairing computer hardware.
3. Name three basic components found in a GSM phone.
4. Differentiate between a desktop computer and a laptop computer.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Concept recall assessment

Step 8: Conclusion

Time: 4 minutes

Teaching Skill: Consolidation

Teacher’s Activity: The teacher summarizes the key areas revised, reiterating the importance of continuous study and practice. The teacher encourages students to review their notes and textbook further in preparation for upcoming assessments.

Pupils’ Activity: Students listen and note down final instructions.

Learning Point: Lesson summary reinforcement

Lesson Keywords

• Hardware – Physical components of a computer system.
• Input Devices – Devices used to enter data into a computer.
• Output Devices – Devices used to display processed data.
• CPU – Central Processing Unit, the brain of the computer.
• RAM – Random Access Memory, temporary storage.
• ESD – Electrostatic Discharge, a static electricity discharge that can damage electronics.
• GSM – Global System for Mobile Communications, a standard for mobile telephony.
• Motherboard – The main circuit board of a computer or phone.

Differentiation

For students who are struggling, the teacher can provide simplified questions or pair them with more advanced students for peer support during revision exercises. Advanced students can be challenged with more complex application-based questions or asked to explain concepts in greater detail to the class.

Suggested Lesson Videos

YouTube search for SS1 Computer Hardware components revision
YouTube search for SS1 GSM phone parts revision