Lesson Notes By Weeks and Term - Senior Secondary 1

Communication systems

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Term: 3rd Term

Week: 2

Class: Senior Secondary School 1

Age: 16 years

Duration: 40 minutes of 2 periods each

Date:       

Subject:      Computer Studies and ICT

Topic:-       Communication systems

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

  1. List and define the various types of data networks

.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 I 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 communication systems

Students pay attention

STEP 2

EXPLANATION

He defines data networks

 

Students pay attention and participates

STEP 3

DEMONSTRATION

He further lists and defines the various types of data network

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

COMMUNICATION SYSTEMS

3. NETWORKS

Data Network is a telecommunications network dedicated or configured solely to transfer data such as letters, spreadsheets and other types of documents from one point to another in an organised way.

Types of Data Networks

There are different data networks that are available. These include:

  1. Personal Area Network (PAN)
  2. Local Area Network (LAN)
  3. Metropolitan Area Network (MAN)
  4. Wide Area Network (WAN)
  5. The Internet

i. Personal Area Network (PAN): This is a computer network built within the range of 10 meters of an individual user. It interconnects several devices such as Laptop, mobile phone, Personal Digital Assistant (PDA), fax machine and printer. Using a wireless link like Bluetooth or Wi-Fi direct. It can further be connected to other networks like the Internet.

ii. Local Area Network (LAN): This is a small computer network within an office space or building which is set up for the purpose of sharing resources like files, printer, games, applications, etc. A Local Area Network (LAN) can contain two or more computers, printer(s), scanner and the Internet connection.

iii. Metropolitan Area Network (MAN): This is a large computer network that covers a city or large college campus. It interconnects several Local Area Networks (LAN) to share and exchange data.

iv. Wide Area Network (WAN): This is a long distance computer network that covers a wide area like a state or country. It consists of several interconnected Local Area Networks (LAN) or Metropolitan Area Networks (MAN). The Internet is the largest WAN in the world.

v. The Internet: This is a worldwide interconnection of computer networks, Otherwise called a network of networks, on which individuals can use their computers from where they are, to share information with others around the world.

EVALUATION:    1. List and explain the various types of data networks

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively