Lesson Notes By Weeks and Term - Senior Secondary 3
Network cables and connectors
Network cables and connectors
Term: 1st Term
Week: 6
Class: Senior Secondary School 3
Age: 17 years
Duration: 40 minutes of 2 periods each
Date:
Subject: Computer Studies and ICT
Topic:- Network cables and connectors
SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to
INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source
INSTRUCTIONAL MATERIALS: Videos, loud speaker, pictures, Data Processing for senior Secondary Education by Hiit Plc, WAPB Computer Studies for Senior Secondary III by Adekunle et al, On-line Materials.
INSTRUCTIONAL PROCEDURES
PERIOD 1-2
|
PRESENTATION |
TEACHER’S ACTIVITY |
STUDENT’S ACTIVITY |
|
STEP 1 INTRODUCTION |
The teacher reviews the previous lesson on the benefits of the worldwide web |
Students pay attention |
|
STEP 2 EXPLANATION |
He defines network cable
|
Students pay attention and participates |
|
STEP 3 DEMONSTRATION |
He lists and explains each type of network cable |
Students pay attention and participate |
|
STEP 4 NOTE TAKING |
The teacher writes a summarized note on the board |
The students copy the note in their books |
NOTE
NETWORK CABLES
Network Cables are medium through which information usually moves from one network to another.
Types of Network Cables
The following are the types of cables used in networks:
UTP is a popular type of cable that consists of two unshielded wires twisted around each other. Due to its low cost, UTP cabling is used extensively for local-area networks (LANs) and telephone connections. UTP cabling does not offer as high bandwidth or as good protection from interference as coaxial or fiber optic cables, but it is less expensive and easier to work with.
Shielded twisted pair is suitable for environments with electrical interferences; however the extra shielding can make the cables quite bulky.
Differences between UTP and STP
Coaxial cabling has a single copper conductor at its center. A plastic layer provides insulation between the center conductor and the braided metal shield. The metal shield helps block any outside interference from fluorescent lights, motors and other computers.
There are two types of coaxial cabling:
Fiber Optic cable consists of a center glass core surrounded by several layers of protective materials. It transmit light rather than electronic signal eliminating the problem of electrical interference.
Telephone systems use low voltage electrical wires to convey signals to phone, modems and fax machine.
EVALUATION: 1. Define network cables
CLASSWORK: As in evaluation
CONCLUSION: The teacher commends the students positively