BOLDSTEPS INTERNATIONAL SCHOOL NYANYA, ABUJA.

1ST TERM ICT LESSON NOTES FOR WEEK 1

CLASS JSS3
SUBJECT COMPUTER STUDIES
TOPIC COMPUTER CAREER OPPORTUNITIES
SUB-TOPICS  Computer Professionals
 Examples of Computer Careers (Computer Manager, System
Analyst, Programmer, etc.)
DATE 8/ September/2025 and 12th /September /2025
PERIOD: Two periods
DURATION: 80 Minutes
TIME 12:40-1:20 and 11:10-11:50
NO IN CLASS
AVERAGE AGE 10-12 years
SEX Mixed
SPECIFIC At the end of the lesson, students should be able to:
OBJECTIVE  Define computer career opportunities.
 Identify and explain various computer professionals.
 State the roles and functions of computer professionals such as
computer manager, system analyst, programmer, etc.
 Appreciate the importance of computer careers in society.
RATIONALE The teacher introduces learners to computer career opportunities to prepare
them for future career choices in the ICT industry.
PREVIOUS Students already know the uses of computers in everyday life from JSS2.
KNOWLEDGE:
INSTRUCTIONAL Computer system, Projector/Charts showing ICT professionals
MATERIALS: Textbook/Handouts.

PRESENTATION TEACHER’S ACTIVITIES LEARNING LEARNING POINT

ACTIVITIES
INTRODUCTION Teacher asks students questions Students attempt Helps students link
like: “Who works on computers answers based on prior knowledge to
in banks, schools, or offices?” experience. new concepts.
STEP I: Teacher defines computer Students listen and Understanding the
career opportunities as different take notes. career opportunities
professions available for people that awaits a computer
who have computer skills and professional
knowledge.
STEP II: Teacher explains Computer Students write Understanding who a
Professionals as people trained notes and ask computer professional
to design, build, maintain, and questions. is.
manage computer systems and Students learn key
software. professional.
STEP III: Teacher lists and explains some Students write Students learn key
Computer Professionals: notes and ask professionals and their
- Computer Manager: questions. duties.
Oversees computer operations
in an organization.
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- System Analyst: Studies and
designs system solutions to
meet business needs.
- Programmer: Writes and
tests computer programs.
- Network Administrator:
Manages and secures computer
networks.
- Database Administrator:
Manages storage and retrieval
of data.
STEP IV Teacher guides students to Students write Students learn the
group careers into Hardware- notes and ask different aspects of
related and Software-related questions. computer
jobs. professionals
STEP V: Teacher shows pictures or charts of computer professionals at work (e.g.,
programmers coding, IT managers in an office).
EVALUATION: The teacher evaluates the lesson using the following questions:

1. What is meant by computer career opportunities?

2. Who is a computer professional?
3. List five examples of computer professionals.
4. State the role of a computer manager.
5. Differentiate between a programmer and a system analyst.
6. Group computer careers into hardware-related and software-related

CONCLUSION: The teacher summarizes the main points of the lesson and emphasizes the
relevance of computer professionals in modern society.
ASSIGNMENT: List and explain 5 qualities of a good computer professional?
REFERENCE BOOK: 1. Computer Studies for Junior Secondary Schools (HIIT Plc), pp. 5–7.
2. Inspire.education.gov.ng

1ST TERM ICT LESSON NOTES FOR WEEK 2

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CLASS JSS3
SUBJECT COMPUTER STUDIES
TOPIC QUALITIES OF A GOOD COMPUTER PROFESSIONAL
SUB-TOPICS  Qualities of a good Computer professional
 Examples of Computer Careers (Computer Manager, System
Analyst, Programmer, etc.)
DATE 15 /September/2025 and 19th /September /2025
th

PERIOD: Two periods

DURATION: 80 Minutes
TIME 12:40-1:20 and 11:10-11:50
NO IN CLASS
AVERAGE AGE 10-12 years
SEX Mixed
SPECIFIC At the end of the lesson, students should be able to:
OBJECTIVE
 Define who a computer professional is.
 List and explain the qualities of a good computer professional.
 Appreciate the importance of these qualities in computer careers.
RATIONALE The lesson introduces learners to the personal and professional qualities
required for success in ICT-related professions.
PREVIOUS Students have been taught about computer career opportunities in the previous
KNOWLEDGE: lesson.
INSTRUCTIONAL Whiteboard/marker, Charts showing ICT professionals and Short case
MATERIALS: studies/examples

PRESENTATION TEACHER’S ACTIVITIES LEARNING LEARNING POINT

ACTIVITIES
INTRODUCTION Teacher asks: “What makes a Students attempt Links prior knowledge
good teacher, doctor, or lawyer? the question. to new topic.
Do you think computer
professionals also need special
qualities?”
STEP I: Teacher defines a computer Students listen and Understanding who a
professional as a trained person take notes. computer professional
who designs, manages, or uses is.
computer systems to solve
problems.
STEP II: Teacher lists and explains Students write Students learn key
qualities of a good computer notes and ask professional qualities.
professional: questions.
1. Honesty and Integrity –
trustworthy in handling data.
2. Discipline – focused and
hardworking.
3. Creativity – develops new
and better solutions.
4. Good Communication

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Skills – explains ideas clearly.
5. Team Spirit – works well
with others.
6. Analytical and Logical
Thinking – solves problems
effectively.
7. Continuous Learning –
keeps updating ICT knowledge.

8. Confidentiality – protects
sensitive information.
STEP III: Teacher gives examples: a Students discuss Application of
dishonest programmer may examples in groups. qualities in real life.
misuse data, while a creative
one designs useful applications.
STEP IV Teacher encourages students to Students reflect and Self-assessment and
identify which of the qualities share. career awareness.
they already possess.
EVALUATION: The teacher evaluates the lesson using the following questions:

1. Who is a computer professional?

2. List five qualities of a good computer professional.
3. Why is integrity important for computer professionals?
4. Explain why continuous learning is necessary in ICT careers.
CONCLUSION: The teacher summarizes the lesson by stressing that a successful computer
professional must have technical skills and good personal qualities.
ASSIGNMENT: Write short notes on five qualities of a good computer professional and give
examples where they can be applied.
REFERENCE BOOK: 3. Computer Studies for Junior Secondary Schools (HIIT Plc), pp. 8–9.
4. Inspire.education.gov.ng

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1ST TERM ICT LESSON NOTES FOR WEEK 3
CLASS JSS3
SUBJECT COMPUTER STUDIES
TOPIC COMPUTER PROFESSIONAL BODIES
SUB-TOPICS  Nigeria Computer society (NCS): www.ncs.or.ng
 Institute of Management Information System (IMIS): www.imis.org.uk
 Computer Professional Registration Council of Nigeria
(CPRN): www.cprcn.org
 Information Technology Association of Nigeria (ITAN): www.itan.org.ng
 Nigeria Internet Group (NIG)
 Nigeria Communication Commission (NCC) etc,
DATE rd
22 /September/2025 and 26st/September/2025
PERIOD: Two periods
DURATION: 80 Minutes
TIME 12:40-1:20 and 11:10-11:50
NO IN CLASS
AVERAGE AGE 10-12 years
SEX Mixed
SPECIFIC At the end of the lesson, students should be able to:
OBJECTIVE
 Define a professional body.
 Identify computer professional bodies in Nigeria.
 Explain the Nigeria Computer Society (NCS), Nigeria Internet Group (NIG),
Nigeria Communication Commission (NCC), etc. as professional body.
 State the functions and benefits of NCS.
RATIONALE The lesson teaches students the role of professional bodies in guiding and
regulating computer professionals in Nigeria.
PREVIOUS Students have learnt about computer careers and qualities of a good computer
KNOWLEDGE: professional.
INSTRUCTIONAL Whiteboard and marker, Chart showing professional bodies, Nigeria Computer
MATERIALS: Society (NCS) logo or website screenshot

PRESENTATION TEACHER’S ACTIVITIES LEARNING LEARNING POINT

ACTIVITIES
INTRODUCTION Teacher asks: “Doctors, Students attempt Students connect
lawyers, and engineers have answers. familiar ideas to ICT.
professional associations. Do
computer professionals have
theirs?”
STEP I: Teacher defines a professional Students listen and Understanding the
body as an organization that take notes. meaning of a
supports, regulates, and professional body.
promotes people working in a
particular profession.
STEP II: Teacher introduces Nigeria Students write Knowledge of NCS as
Computer Society (NCS) as notes. a professional body in
the umbrella body of all Nigeria.
Information Technology (IT)
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professionals in Nigeria.
STEP III: Teacher explains the functions Students take notes Understanding the
of NCS: and ask questions. roles of NCS.
1. Promotes IT development in
Nigeria.
2. Regulates the practice of
computing.
3. Provides training, seminars,
and workshops.
4. Promotes ethical standards
among members.
5. Advises government on ICT
policies.
6. Encourages research and
development.
STEP IV Teacher highlights benefits of Students discuss Students appreciate
joining NCS: and give examples the importance of
- Networking with other ICT of benefits. professional
professionals. membership.
- Access to ICT resources and
updates.
- Career growth and
recognition.
- Training and certifications.
EVALUATION: The teacher evaluates the lesson using the following questions:

1. What is a professional body?

2. Mention one computer professional body in Nigeria.
3. What is the full meaning of NCS?
4. State three functions of NCS.
5. List two benefits of being a member of NCS.
CONCLUSION: The teacher summarizes the lesson by emphasizing that the Nigeria Computer
Society (NCS) regulates, supports, and promotes ICT professionals in
Nigeria.
ASSIGNMENT: Write short notes on:
1. Two functions of NCS.
2. Two benefits of being a member of NCS.
REFERENCE BOOK:1. Computer Studies for Junior Secondary Schools (HIIT Plc), pp. 10–12.
2. Nigeria Computer Society official website: https://www.ncs.org.ng
3. Inspire.education.gov.ng

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1ST TERM ICT LESSON NOTES FOR WEEK 4

CLASS JSS3
SUBJECT COMPUTER STUDIES
TOPIC DIGITAL DIVIDE
SUB-TOPICS 1. Concept of Digital Divide
2. Features of the New and Old Economy
DATE 29 /September/ 2025 and 3rd /October /2025.
th

PERIOD: Two periods

DURATION: 80 Minutes
TIME 12:40-1:20 and 11:10-11:50
NO IN CLASS
AVERAGE AGE 10-12 years
SEX Mixed
SPECIFIC At the end of the lesson, students should be able to:
OBJECTIVE
 Define the concept of digital divide.
 Explain causes and effects of digital divide.
 Differentiate between the old economy and the new economy.
 List features of both old and new economies.
RATIONALE The lesson makes students aware of the differences between people with access
to ICT and those without, and how this gap influences economic and social
development.
PREVIOUS Students are familiar with the importance of ICT in careers and society.
KNOWLEDGE:
INSTRUCTIONAL Whiteboard and marker, Charts comparing old vs. new economy, Internet
MATERIALS: access (if available), Case study (urban vs. rural ICT access)

PRESENTATION TEACHER’S ACTIVITIES LEARNING LEARNING POINT

ACTIVITIES
INTRODUCTION Teacher asks: “Do all students Students respond Students connect real-
in Nigeria have access to from personal life situations to the
computers and the internet? experiences. concept of digital
Why or why not?” divide.
STEP I: Teacher defines Digital Divide Students listen and Understanding of
as the gap between individuals, take notes. digital divide.
households, or communities
that have access to modern ICT
and those that do not.
STEP II: Teacher explains Causes of Students give Students understand
Digital Divide: examples from their the reasons for digital
- Lack of infrastructure communities. divide.
(electricity, internet).
- High cost of ICT devices.
- Low digital literacy.
- Economic inequality.
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- Urban vs rural differences.
STEP III: Teacher introduces the concept Students write Students see
of Old Economy vs. New down definitions. differences in
Economy. economic systems.
- Old Economy: Based on
traditional industries like
farming, mining,
manufacturing, physical goods.
- New Economy: Driven by
ICT, digital services,
knowledge, and innovation.
STEP IV Teacher lists Features of Old Students identify Characteristics of old
Economy: examples (e.g., economy.
1. Manual/physical labour. farming without
2. Limited use of ICT. machines).
3. Focus on tangible goods.
4. Slow communication.
5. Location-based activities.
STEP V Teacher lists Features of New Students identify Characteristics of new
Economy: examples (e.g., e- economy.
1. ICT-driven and internet- commerce, online
based. banking).
2. Focus on knowledge and
services.
3. Global connectivity.
4. Fast digital communication.
5. Innovation and creativity.
STEP VI Teacher uses a chart to compare Students study Visual comparison of
Old Economy vs New chart and ask both economies.
Economy. questions.
EVALUATION: The teacher evaluates the lesson using the following questions:

1. What is digital divide?

2. Mention two causes of digital divide.
3. State three features of the old economy.
4. State three features of the new economy.
5. Differentiate between old and new economy.
CONCLUSION: The teacher summarizes that digital divide is the gap in ICT access, and
explains how the world is moving from the old economy (manual and
industrial-based) to the new economy (ICT and knowledge-based).
ASSIGNMENT: 1. Explain three causes of digital divide in Nigeria.
2. Draw a comparison table of five features of the old economy and five
features of the new economy.
REFERENCE BOOK:1. Computer Studies for Junior Secondary Schools (HIIT Plc), pp. 13–15.
2. Inspire.education.gov.ng
3. Digital Economy and Society Resources (Nigeria Ministry of
Communications and Digital Economy).

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1ST TERM ICT LESSON NOTES FOR WEEK 5

CLASS JSS3
SUBJECT COMPUTER STUDIES
TOPIC DIGITAL DIVIDE (CONT’D)
SUB-TOPICS 1. Limitations of the Old Economy
2. Benefits of the New Economy
DATE 6 /October/ 2025 and 10th /October /2025.
st

PERIOD: Two periods

DURATION: 80 Minutes
TIME 12:40-1:20 and 11:10-11:50
NO IN CLASS
AVERAGE AGE 10-12 years
SEX Mixed
SPECIFIC At the end of the lesson, students should be able to:
OBJECTIVE
 State the limitations of the old economy.
 Explain the benefits of the new economy.
 Compare the old economy and the new economy.
 Appreciate the importance of ICT in modern development.
RATIONALE Students need to understand why the old economy was limited and how ICT-
driven economies create more opportunities for growth.
PREVIOUS Students have been taught the concept of digital divide and the features of old
KNOWLEDGE: and new economy.
INSTRUCTIONAL Whiteboard and marker, Chart comparing old and new economy, Pictures of
MATERIALS: traditional industries vs ICT-based industries

PRESENTATION TEACHER’S ACTIVITIES LEARNING LEARNING POINT

ACTIVITIES
INTRODUCTION Teacher revises last week’s Students attempt Links old lesson to
lesson by asking: “What are the answers. today’s discussion.
features of the old economy?
What are the features of the
new economy?”
STEP I: Teacher explains Limitations Students listen, Students understand
of the Old Economy: write notes, and the weaknesses of the
1. Heavy reliance on manual give examples (e.g., old economy.
labour. traditional
2. Low productivity. farming).
3. Slow communication and
information flow.
4. Limited access to global
markets.
5. Poor innovation and
technology adoption.
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6. Location-based restrictions
(business tied to physical
place).
7. Low standard of living due to
limited opportunities.
STEP II: Teacher explains Benefits of Students listen, Students understand
the New Economy: write notes, and the advantages of ICT-
1. ICT-driven efficiency and give examples (e.g., driven economy.
productivity. online banking,
2. Fast communication through remote learning).
the internet.
3. Access to global markets (e-
commerce, online services).
4. Knowledge-based
innovations.
5. Flexible working conditions
(remote jobs).
6. Improved education and
research through ICT.
7. Better standard of living and
economic growth.
STEP III: Teacher uses a chart to Students study the Students can visualize
compare limitations of old chart and ask differences clearly.
economy and benefits of new questions.
economy side by side.
STEP IV Teacher links the lesson to Students reflect and Understanding the
digital divide by explaining share real-life relevance of digital
that those without ICT access examples. divide.
still suffer from “old economy”
limitations.
EVALUATION: The teacher evaluates the lesson using the following questions:
1. State three limitations of the old economy.
2. List four benefits of the new economy.
3. Explain how ICT has improved communication compared to the old
economy.
4. Why was productivity low in the old economy?
5. How does the new economy promote global interaction?
CONCLUSION: The teacher summarizes that the old economy was limited by manual
processes, poor communication, and local restrictions, while the new
economy brings efficiency, innovation, and global opportunities through
ICT.
ASSIGNMENT: 1. Write five limitations of the old economy.
2. Write five benefits of the new economy.
3. Prepare a comparison table of the old economy vs the new economy
REFERENCE BOOK:1. Computer Studies for Junior Secondary Schools (HIIT Plc), pp. 16–18.
2. Inspire.education.gov.ng
3. Ministry of Communications and Digital Economy (Nigeria).

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1ST TERM ICT LESSON NOTES FOR WEEK 7
CLASS JSS3
SUBJECT COMPUTER STUDIES
TOPIC INTERNET AND COMPUTER VIRUS
SUB-TOPICS 1. Meaning of Internet

2. Uses of Internet

3. Features of Internet
DATE 20th /October/2025 and 25th / October /2025
PERIOD: Two periods
DURATION: 80 Minutes
TIME 12:40-1:20 and 11:10-11:50
NO IN CLASS
AVERAGE AGE 10-12 years
SEX Mixed
SPECIFIC At the end of the lesson, students should be able to:
OBJECTIVE 1. Define the Internet.
2. Mention at least five uses of the Internet.
3. State at least five features of the Internet.
4. Give examples of Internet services and applications.
RATIONALE The Internet is a global system of interconnected networks that has transformed
communication, learning, business, and entertainment. Students need to
understand its meaning, uses, and features for effective application in daily life
and academics.
PREVIOUS Students are already familiar with computers and basic concepts of
KNOWLEDGE: communication networks from previous class.
INSTRUCTIONAL Chart showing Internet connection (cloud, servers, users), computer connected to
MATERIALS: the Internet, projector/screenshots of websites, whiteboard/marker.

PRESENTATION TEACHER’S ACTIVITIES LEARNING LEARNING

ACTIVITIES POINT
INTRODUCTION Teacher asks: “Who has used Google or Students share Activates prior
WhatsApp today? What did you use it for?” their knowledge of
experiences. online activities.
STEP I: Meaning of Internet – Teacher explains: Students listen, Students
The Internet is a worldwide system of ask questions, understand the
computer networks linked together to share and take notes. definition of the
information and communicate. Internet.
STEP II: Uses of Internet – Teacher explains uses: Students give Students
Communication, Research, Business, examples from recognize
Entertainment, Government services, Cloud daily life. practical uses of
storage. the Internet.
STEP III: Features of Internet – Teacher explains Students list Students learn
features: Global reach, Accessibility, features and characteristics of
Interactivity, Multimedia, Vast information, give examples. the Internet.
Speed and convenience.
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STEP IV Internet Services & Applications – Teacher Students Students connect
explains: WWW, Email, Social media, identify services Internet features
Online learning, E-banking. they have used. to real-world
applications.
EVALUATION: The teacher evaluates the lesson using the following questions:
1. Define the Internet.
2. Mention five uses of the Internet.
3. State four features of the Internet.
4. Mention three Internet services.
CONCLUSION: The teacher summarizes that The Internet is a global system of interconnected
networks used for communication, learning, business, and entertainment. It has
unique features like global access, interactivity, and multimedia, and provides
services like email, websites, and social media.
ASSIGNMENT: 1. List five advantages and five disadvantages of the Internet.
2. Write short notes on three Internet services you use most often.
REFERENCE 3. HIIT Plc – Computer Studies for JSS3, pp. 34–40
BOOK: 4. Inspire.education.gov.ng
5. National ICT Curriculum for JSS3

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1ST TERM ICT LESSON NOTES FOR WEEK 8

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CLASS JSS3
SUBJECT COMPUTER STUDIES
TOPIC INTERNET AND COMPUTER VIRUS
SUB-TOPICS 6. Definition of Search Engine

7. Search Engine Terminologies

8. Examples of Search Engines

9. Uses of Search Engines

DATE: 27 / October /2025 and 31st / October /2025
th

PERIOD: Two periods

DURATION: 80 Minutes
TIME 12:40-1:20 and 11:10-11:50
NO IN CLASS
AVERAGE AGE 10-12 years
SEX Mixed
SPECIFIC At the end of the lesson, students should be able to:
OBJECTIVE 10. Define a search engine.
11. Identify and explain basic search engine terminologies.
12. Mention examples of search engines.
13. State the uses of search engines.
RATIONALE Search engines are essential tools for locating information on the Internet.
Students need to understand their meaning, common terms, examples, and uses to
maximize effective searching and online learning.
PREVIOUS Students are already familiar with the Internet, its uses, and features from the
KNOWLEDGE: previous class.
INSTRUCTIONAL Chart showing search engine logos (Google, Yahoo, Bing), computer connected to
MATERIALS: Internet, projector/screenshots of search pages, whiteboard/marker.

PRESENTATION TEACHER’S ACTIVITIES LEARNING LEARNING

ACTIVITIES POINT
INTRODUCTION Teacher asks: “When you want to find Students Activates prior
information online, what do you type or respond with knowledge of
where do you go first?” 'Google,' browsing.
'Yahoo,' etc.
STEP I: Definition – Teacher defines a search Students listen Students
engine as a web-based tool that helps users and take notes. understand the
find information on the Internet using definition of a
keywords or phrases. search engine.
STEP II: Terminologies – Teacher explains terms: Students repeat Students become
Keyword, Query, Search results/page and write down familiar with
ranking, Indexing, Web crawler/spider. terms with search-related
examples. terms.
STEP III: Examples – Teacher lists Google, Bing, Students Students identify
Yahoo, Ask.com, DuckDuckGo. mention ones common search
they have used. engines.
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STEP IV Uses – Teacher explains uses: Finding Students Students
information, Accessing news, Locating provide understand
media, Academic references, Online practical applications of
shopping. examples. search engines.
EVALUATION: The teacher evaluates the lesson using the following questions:
1. Define a search engine.
2. Mention three search engine terminologies.
3. Give four examples of search engines.
4. State four uses of search engines.
CONCLUSION: Search engines are powerful online tools that allow users to find information
quickly and easily. They use keywords, queries, and indexing to provide results.
Popular examples include Google, Bing, and Yahoo.
ASSIGNMENT: 1. List five advantages and three disadvantages of using search engines.
2. Differentiate between a search engine and a web browser with two points
each.
REFERENCE 3. HIIT Plc – Computer Studies for JSS3, pp. 41–46
BOOK: 4. Inspire.education.gov.ng
5. National ICT Curriculum for JSS3

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1ST TERM ICT LESSON NOTES FOR WEEK 9

CLASS JSS3
SUBJECT COMPUTER STUDIES
TOPIC INTERNET AND COMPUTER VIRUS
SUB-TOPICS Meaning and Types of Viruses

DATE 3rd / November/ 2025 and 7th /October/2025

PERIOD: Two periods
DURATION: 80 Minutes
TIME 12:40-1:20 and 11:10-11:50
NO IN CLASS
AVERAGE AGE 10-12 years
SEX Mixed
SPECIFIC At the end of the lesson, students should be able to:
OBJECTIVE  Define a computer virus.
 State the characteristics of computer viruses.
 Mention different types of computer viruses.
 Give examples of common computer viruses.
 Explain briefly how viruses affect computer systems..
RATIONALE Understanding the concept of computer viruses is important to help students
protect their systems, data, and internet activities from harm.
PREVIOUS Students already know what the internet is and how computers exchange
KNOWLEDGE: information in previous class.
INSTRUCTIONAL Whiteboard and marker, Chart showing virus infection cycle, Computer system
MATERIALS: (demo with antivirus pop-up screenshot)

PRESENTATION TEACHER’S ACTIVITIES LEARNING LEARNING

ACTIVITIES POINT
INTRODUCTION Teacher begins by asking: “Have Students respond Students connect
you ever heard of a virus in the with their ideas. human illness to
human body? What about in computer infection.
computers?”
STEP I: Teacher explains Meaning of Students listen and Students understand
Computer Virus: take notes. the definition of
- A computer virus is a type of computer virus.
malicious program or code that
attaches itself to files or programs
and disrupts normal computer
operations.
- It can spread from one computer
to another through infected files,
storage devices, or the internet.
STEP II: Teacher lists Characteristics of Students repeat after Students learn
Computer Viruses: the teacher. features of viruses.
1. They attach themselves to
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programs or files.
2. They spread when the infected
file is shared.
3. They can slow down or crash a
system.
4. They may damage or delete
data.
5. They are created deliberately by
programmers.
STEP III: Teacher explains Types of Students write down Students learn
Computer Viruses with notes and give different types of
examples: examples. viruses.
1. Boot Sector Virus – infects the
system boot area (e.g., Stone
virus).
2. File/Program Virus – attaches
to executable files (.exe, .com).
3. Macro Virus – infects files
created with applications like MS
Word/Excel.
4. Polymorphic Virus – changes
its code to avoid detection.
5. Worms – self-replicating
programs that spread through
networks.
6. Trojan Horse – looks like a
useful program but causes harm
secretly.
STEP IV Teacher briefly explains effects of Students discuss Students connect
viruses (slowness, data loss, examples they may lesson to real life.
crashes, theft of information). have seen (e.g., flash
drive infections).
EVALUATION: The teacher evaluates the lesson using the following questions:
1. Define a computer virus.
2. State three characteristics of computer viruses.
3. Mention four types of computer viruses.
4. Give one example of a macro virus.
5. Explain how a Trojan horse virus works.
CONCLUSION: The teacher summarizes that a computer virus is a malicious program designed
to disrupt, damage, or steal data, and comes in different types such as boot
sector, file, macro, worm, and Trojan horse viruses.
ASSIGNMENT: 1. Write five common ways computer viruses spread.
2. Differentiate between a worm and a Trojan Horse virus.
3. Suggest two preventive measures against viruses.
REFERENCE BOOK:4. HIIT Plc – Computer Studies for JSS3, pp. 22–25.
5. National Open University of Nigeria – Computer Fundamentals.
6. Inspire.education.gov.ng

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1ST TERM ICT LESSON NOTES FOR WEEK 10
CLASS JSS3
SUBJECT COMPUTER STUDIES
TOPIC INTERNET AND COMPUTER VIRUS
SUB-TOPICS 7. Examples and Sources of Computer Viruses
8. Virus Warning Signs
9. Virus Detection (Antivirus)
DATE 10th /November/2025 and 14th / November /2025
PERIOD: Two periods
DURATION: 80 Minutes
TIME 12:40-1:20 and 11:10-11:50
NO IN CLASS
AVERAGE AGE 10-12 years
SEX Mixed
SPECIFIC At the end of the lesson, students should be able to:
OBJECTIVE  Give examples of computer viruses.
 Identify common sources of computer virus infections.
 State warning signs of a virus-infected computer.
 Explain how antivirus software detects viruses.
 Mention common antivirus programs used in Nigeria.
RATIONALE Computer viruses can cause loss of data and damage to systems. Teaching
students examples, warning signs, and antivirus detection helps them to
recognize infections and adopt protective measures.
PREVIOUS Students have already learned the meaning, features, and types of computer
KNOWLEDGE: viruses in previous class.
INSTRUCTIONAL Chart showing virus infection and spread, Computer system with antivirus demo
MATERIALS: screenshot (e.g., Windows Defender or Avast), Whiteboard/marker

PRESENTATION TEACHER’S ACTIVITIES LEARNING LEARNING

ACTIVITIES POINT
INTRODUCTION Teacher asks: “Have you seen a computer Students Activates
system that keeps creating shortcut folders? respond with learners’ prior
Or a notice saying ‘Threat detected’?” experiences. knowledge of
virus attacks.
STEP I: Examples of Computer Viruses: Teacher Students listen, Students become
lists and explains: ask questions, familiar with
- ILOVEYOU Virus (spread through and take notes. well-known
email). viruses.
- Melissa Virus (infected Word
documents).
- CIH (Chernobyl) (damaged hard drives).
- Nimda Virus (spread through networks).
- WannaCry Ransomware (encrypted files
and demanded money).
STEP II: Sources of Computer Viruses: Teacher Students share Students learn
explains that viruses spread through: examples (e.g., virus entry
1. Infected flash drives. shortcut virus points.
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 BOLDSTEPS INTERNATIONAL SCHOOL NYANYA, ABUJA.
2. Email attachments. from café
3. Downloading cracked/pirated software. computers).
4. Unsafe websites.
5. Social media links and pop-ups.
6. Infected network connections.
STEP III: Virus Warning Signs: Teacher explains Students list Students can
symptoms of infection: warning signs identify virus-
1. Slow system performance. in groups. infected systems.
2. Files turning into shortcuts/disappearing.
3. Frequent crashing or restarting.
4. Strange pop-ups and adverts.
5. Error messages or programs refusing to
open.
6. Unusual hard disk activity.
STEP IV Virus Detection (Antivirus): Teacher Students Students
explains that antivirus software helps observe understand how
detect, quarantine, and remove viruses. antivirus antivirus protects
- Meaning of Antivirus: Special software logo/chart and computers.
designed to find and delete malicious write examples.
programs.
- How it works: Scans files, monitors
programs, and compares them with virus
signatures.
- Examples: Avast, Norton, McAfee,
Kaspersky, Windows Defender, AVG,
QuickHeal.
STEP V Practical Demo (Optional): Teacher shows Students watch Students see
screenshot of antivirus detecting a threat. attentively and real-life
ask questions. application of
antivirus
software.
EVALUATION: The teacher evaluates the lesson using the following questions:
1.Mention three examples of computer viruses.
2.State four sources of computer virus infections.
3.List four warning signs of a virus-infected computer.
4.What is antivirus software?
5.Mention three antivirus programs commonly used.
CONCLUSION: The teacher summarizes that viruses can spread from many sources, show
warning signs like slowness or errors, and can be detected/removed with
antivirus software.
ASSIGNMENT: 1. Write five differences between a virus and antivirus software.
2. If your computer suddenly slows down and files disappear, what steps will you
take to fix it?
REFERENCE 1. HIIT Plc – Computer Studies for JSS3, pp. 29–33.
BOOK: 2. Inspire.education.gov.ng
3. National ICT Curriculum for JSS3

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