RESEARCH METHODOLOGY
3.3 Research Instrument
Network Topology
Defines Topology as the shape or structure of a network. Also explains network topology as the arrangement of cables, computers and other peripherals on the network. Network topology means the layout of a network. It is the layout of connected device on a network.
Students listen to the teacher as he explains and ask questions where explanation is not clear.
Chalkboard CLM
Step II
Types of Network Topology
Lists and explain the types of Network Topology as:
1. Star Topology:
data and
Information are connected
through the
HUB or
SERVER and if the HUB breaks down, none of the computers can
communicate with each other.
2. Linear Bus Topology:
Here, all nodes, work stations and peripheral are connected to the linear cable.
It consists of a main run of cable with a
Students listen to the teacher as he explains.
Chalkboard and
Computer System
CLM
terminator at each end.
3. Ring Topology:
This type of network
topology is set up in a circular or ring form.
Each mode
depends on the other for it to function
properly.
4. Mesh
Topology: This involves the concept of Routes. It provides each device with a point-to-point connection to every other device on the network.
5. Tree Topology:
It comprises of multiple STAR topologies into a BUS. It is a type of network topology in which a central
―ROOT‖ is
connected to one or more other nodes.
Step III
Advantages of the mentioned types of Network Topology.
Star Topology
i. It is easy to install.
ii. Network
functions even
Student listens to the teacher.
Chalkboard CLM
when one computer is faulty
Linear Bus Topology i. It ensures easy
broadcasting and
multicasting.
ii. It requires less
cable for
installation.
Ring Topology
i. It covers a very long distance.
ii. There is nothing like central wiring.
Mesh Topology
i. Data has access to the fastest path hence extremely
reliable.
ii. It makes fault identification and isolation easy.
Tree Topology
i. It facilitates point-to-point wiring.
ii. It is supported by several topologies.
Step IV
Disadvantages
of the
Network Topologies.
Star Topology
i. It requires more cable length for installation.
ii. It is expensive.
Linear Bus Topology i. It is difficult to
identify the
Student listens to the teacher.
Chalkboard CLM
problem if the entire network shuts down.
ii. If one NODE fails, the whole network will shut down.
Ring Topology
i. It is difficult to identify the problem if it arises.
ii. Transmission speed of the network
depends on the number and processing speed of the participating nodes.
Mesh Topology
i. Wiring is very complicated.
ii. Cabling cost is
high and
expensive.
Tree Topology
i. If the central source breaks down, it affects the entire segment..
ii. It is difficult to configure.
Evaluation: The teacher informs the students that evaluation comes at last.
Closure: The teacher says goodbye till next class and leaves the class instructing the students to clean the chalkboard.
Week Three (III)
Conventional Lecture Method (CLM) Lesson Plan on Network Topology II Subject: Computer studies
Class: SS II
Age: 16 Years + Duration: 40 Minutes
Topic: Network Topology II
Specific Objectives: At the end of the lesson, the students should be able to;
i. Outline the benefits of Networking
ii. Enumerate some considerations when choosing a Topology iii. List Ten (10) Network devices
Instructional Materials: Computer Textbooks, Computer System and Chalkboard.
Entry Behaviour: Students has been taught; Networking, Network Topology I and the Types of Network Topology.
Set Induction: The teacher asks the student the types of Network Topology I and why they think Network Topology is necessary in order to establish their entry behaviour of the lesson.
INSTRUCTIONAL PROCEDURE Content
Development
Teacher’s Activities Learners’
Activities
Instructional Resources
Teaching
Method and Strategies Step I
Benefits of Networking
i. Ease of
Communication:
Computers in a networked
environment are
used to
communicate with each other e.g. email, chatting etc.
ii. Ease of Collaboration:
People now share opinions on
Listen to the teacher. Respond to the teachers questions. Ask questions to the teacher for clarification
Chalkboard and
Computer System
CLM
Demonstration, Conventional, Questioning
different socio-cultural and technological innovations.
iii. Sharing of Computing Resources:
Computers in a networked
environment share resources shuch as Printers, MODEM,
Scanner, files etc.
iv. Allows
software to be shared:
Operating
program and software can be shared using network.
v. It helps in research work:
It helps one in carrying out research work hence making it easy to access material for the research.
vi. E-learning: It helps in teaching.
Through the network, one can gain a lot of knowledge and experiences.
vii. It provides easy access to information: It ensures easy
access to information.
Step II
Considerations in choosing a Topology
i. Cost
ii. Length of cable needed
iii. Future
expansion and growth
iv. Type of