Network Topologies Jss Two Plan

JSS 2 FIRST TERM — WEEK 4 LESSON PLAN

Subject	Digital Technologies
Class	JSS 2 (Basic 8)
Term	First Term
Week	4
Topic	Network Topologies
Subtopics	Meaning and types: Bus, Star and Ring; Advantages and disadvantages
Duration	80 Minutes (Double Period)

BEHAVIOURAL OBJECTIVES

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

1. Define network topology.
2. Explain how devices can be arranged in a computer network.
3. Identify bus, star and ring topologies.
4. Describe the basic structure of bus, star and ring topologies.
5. State the advantages of bus, star and ring topologies.
6. State the disadvantages of bus, star and ring topologies.
7. Compare the three network topologies.

INSTRUCTIONAL / TEACHING AIDS

• Network topology charts
• Bus, star and ring topology diagrams
• Computers or laptops
• Network cables
• Network switch
• Pictures of network arrangements
• Projector
• Whiteboard and marker

PREVIOUS KNOWLEDGE / ENTRY BEHAVIOUR

Students have learnt the meaning of a computer network and have studied common network components such as servers, clients, switches, routers, hubs and network media. They understand that network devices can be connected together to allow communication and sharing of resources.

PRESENTATION

Step	Teacher's Activity	Students' Activity
Step 1 Introduction	The teacher reviews the previous lesson by asking students to identify network components such as switches, routers and cables. The teacher explains that network devices can be arranged in different patterns.	Students recall previously learnt network components and respond to questions.
Step 2 Meaning of Network Topology	The teacher defines network topology as the arrangement or layout of devices and connections in a computer network. The teacher explains that different arrangements have different characteristics.	Students listen, take notes and explain network topology in their own words.
Step 3 Bus Topology	The teacher introduces bus topology and explains that all devices are connected to a single main communication line called the backbone. A diagram is used to illustrate the arrangement.	Students observe the diagram and identify the main cable and connected devices.
Step 4 Star Topology	The teacher explains that in star topology, each device is connected to a central device such as a switch. The teacher demonstrates the arrangement using a diagram.	Students observe the diagram and identify the central device and connected computers.
Step 5 Ring Topology	The teacher explains that in ring topology, devices are connected in a circular arrangement, with each device connected to neighbouring devices.	Students observe the diagram and describe the circular arrangement.
Step 6 Advantages and Disadvantages	The teacher discusses the advantages and disadvantages of bus, star and ring topologies. Students are encouraged to compare the different arrangements.	Students participate in the discussion and record the advantages and disadvantages of each topology.
Step 7 Comparison	The teacher presents a comparison of the three topologies based on structure, installation, fault handling and dependence on central devices.	Students compare the three topologies and answer questions.
Step 8 Conclusion	The teacher summarizes the lesson and asks students to identify the three topologies and describe their basic arrangements.	Students answer questions and summarize what they have learnt.

EVALUATION QUESTIONS

1. What is network topology?
2. State three types of network topology.
3. Describe bus topology.
4. State two advantages of bus topology.
5. State two disadvantages of bus topology.
6. Describe star topology.
7. State two advantages of star topology.
8. What is ring topology?
9. State two disadvantages of ring topology.
10. Give two differences between bus and star topology.

ASSIGNMENT

Draw and label the following network topologies in your notebook:

1. Bus topology
2. Star topology
3. Ring topology

Under each diagram, write two advantages and two disadvantages of the topology.

TEACHER'S REFLECTION

The teacher should assess students' ability to recognize the different network topologies from diagrams and explain their advantages and disadvantages. Additional diagrams and practical demonstrations should be used where students have difficulty distinguishing the topologies.