JSS 3 First Term

LEARNING OBJECTIVES: BY THE END OF THE LESSON PUPILS SHOULD BE ABLE TO:

Cognitive	i. Define a computer network and state why networks are used. ii. Describe PAN, LAN, MAN and WAN by the area each covers. iii. Explain how IP addresses and DNS help devices communicate. iv. Apply rules of online safety and digital citizenship.
Affective	i. Appreciate the value of Review of Networks, the Internet and Digital Safety in school, at home and in the community. ii. Show willingness to use digital tools carefully, safely and responsibly.
Psychomotor	i. List three ways two phones can share a file without using the internet. ii. Draw a table of the four network types and give one example of each. iii. State two advantages and two disadvantages of using a network. iv. Write a personal online-safety plan with three rules you will follow.

Rationale: A computer network is two or more computers or devices connected together so they can share resources such as files, printers, internet access and messages. Understanding starter Scenario, what is a Computer Network, types of Networks, the Internet and How it Works helps learners use digital technology confidently, safely and responsibly.

Pre-requisite Knowledge: Learners have just entered JSS 3 and already use digital devices such as phones, radios, televisions and computers at home or in the community. They can switch a device on, make a call, send a message and identify common parts such as the screen, keyboard and mouse.

Learning Material/Teaching Aid: Whiteboard, markers, computer or laptop where available, printed notes and charts on Review of Networks, the Internet and Digital Safety, practical task sheets, learners' notebooks and pens.

Reference Materials: Digital Technology for Junior Secondary Schools (JSS 3); NERDC Digital Technology Curriculum; Digital Technology JSS 3 First Term Notes (Week 1); First Term examination and Continuous Assessment question papers.

LESSON DEVELOPMENT

Stage/Step (Time)	Teacher's Activities	Student's Activities	Learning Points
Introduction 5 MINUTES	Welcomes learners, explains the classroom rules and asks what digital devices they already use at home and in the community. Elicits responses, links them to the new topic and writes Review of Networks, the Internet and Digital Safety on the board.	Share what they already know about Review of Networks, the Internet and Digital Safety and listen to the introduction.	Building on everyday experience and introducing Review of Networks, the Internet and Digital Safety.
Step 1 6 MINUTES	Covers Starter Scenario: Three friends in the same classroom each have a document on their own phone. They want to share these documents with one another so that all three have all three documents. Covers What is a Computer Network: A computer network is two or more computers or devices connected together so they can share resources such as files, printers, internet access and messages. Devices on a network are sometimes called nodes.	Listen, take notes and answer oral questions on "Starter Scenario" and related points.	Understanding: Starter Scenario; What is a Computer Network.
Step 2 6 MINUTES	Covers Types of Networks: Networks are classified by the area they cover. A Personal Area Network, or PAN, is the smallest type, covering the space around one person. Covers The Internet and How it Works: The internet is a world-wide system of interconnected computer networks. It allows any device connected to it, whether computer, phone, tablet or smart TV, to send and receive information with any other connected device anywhere on Earth.	Copy the key points, give examples from school and everyday life, and ask questions on "Types of Networks" and related points.	Understanding: Types of Networks; The Internet and How it Works.
Step 3 6 MINUTES	Covers Digital Citizenship and Online Safety: Digital citizenship means using technology responsibly, respectfully and safely. A good digital citizen respects other people online and uses polite language. Covers Personal Online-Safety Plan: Every learner should draft a short personal plan with three parts. The first part is one rule you will follow for your password, such as never sharing it and changing it regularly.	Discuss in pairs, then report one point on "Digital Citizenship and Online Safety" and related points to the class.	Understanding: Digital Citizenship and Online Safety; Personal Online-Safety Plan.
Step 4 6 MINUTES	Covers Systems Diagnostic Activity: A school computer laboratory has 30 computers, one server and two printers. The lab wants all computers to share the printers, share files and access the internet, while keeping the students' accounts safe. The type of network best for this laboratory is a LAN.	Respond to questions, complete the examples on the board and note down "Systems Diagnostic Activity".	Understanding: Systems Diagnostic Activity.
Practical Work 6 MINUTES	Guides learners through the practical work: (i) List three ways two phones can share a file without using the internet. (ii) Draw a table of the four network types and give one example of each. (iii) State two advantages and two disadvantages of using a network. Moves round the class to check progress and correct unsafe or careless use.	Carry out the practical tasks individually or in pairs and record what they did in their notebooks.	Applying the lesson through hands-on practice.
Evaluation 3 MINUTES	Asks learners to: i. Define a computer network and state why networks are used. ii. Describe PAN, LAN, MAN and WAN by the area each covers. iii. Explain how IP addresses and DNS help devices communicate. iv. Apply rules of online safety and digital citizenship.	Respond verbally and in writing to the evaluation questions.	Assessment and consolidation of the lesson content.
Conclusion 2 MINUTES	Recaps the main points: starter Scenario, what is a Computer Network, types of Networks, the Internet and How it Works, digital Citizenship and Online Safety. Links them to the assignment and previews Week 2: Internet and Web Technologies.	Listen, ask questions and copy the assignment.	Reinforcement of key concepts and a preview of the next lesson.

Assignment: i. Three classmates each hold a document on a phone and want every one of them to have all three documents. Define a computer network, state the devices on a network are called, give the reasons networks are set up, and explain how a school network meets the classmates' need. ii. A school in Abuja has 25 computers in one room and wants all of them to share a single printer. Should the school set up a PAN or a LAN? Explain your choice by comparing what each type covers.