First Term


Week 3




Previous lesson:

Pupils have previous knowledge of




that was taught in their previous lesson





Behavioural objectives:

At the end of the lesson, the pupils should be able to


  • say the meaning of the system software
  • mention types of system software
  • explain the uses of system


Instructional Materials:

  • Wall charts
  • Pictures
  • Related Online Video
  • Flash Cards

Methods of Teaching:

  • Class Discussion
  • Group Discussion
  • Asking Questions
  • Explanation
  • Role Modelling
  • Role Delegation


Reference Materials:

  • Scheme of Work
  • Online Information
  • Textbooks
  • Workbooks
  • 9 Year Basic Education Curriculum
  • Workbooks






  1. Meaning of Application Software
  2. Classification of Application Software
  3. Types of Application Software

Meaning of Application Software

Application software consists of software that performs specific tasks for users.


Classification of Application Software

(a) User application program: User application software is software that is created to meet the user’s specific needs.

(b) Application Packages: This is a software package that is created for a specific purpose or industry

Types of Application Software

  1. Word processing software
  2. Spreadsheet software
  3. Database management software
  4. Presentation software
  5. Graphic software
  6. Communication software
  7. Multimedia software

The tree below summarizes the classes of software


  1. Distinguish between system software and application software
  2. List five application packages you know


Definition of Operating System

Operating system is a set of programs that coordinates all the activities among computer hardware devices. It also contains instructions that allow users to run application software. When a user starts a computer, portions of the operating system (OS) load into memory from the computer’s hard disk. It remains in memory while the computer is on. The operating system provides a means for users to communicate with other software. It is the operating system that makes the computer understand the user’s instructions and commands. It is the life-wire of a computer system. It does the loading and schedule of all activities going on in a computer system.

For users to be able to interact with the computer machine, the operating system provides the user with what is called user interface (UI)

The Meaning of User Interface

What is user interface (UI)? This is the space through which interactions between humans and machines occur. The goal of UI is to allow effective operation of the computer machine.

Types of User Interface

(i) Command based interface: In command-based interface, lines of command are used to instruct or communicate with the computer system.

(ii) Graphical User Interface (GUI): With graphical user interface, you interact with the software using text, graphics, and visual images such as icons. An icon is a small image that represents a program, an instruction, or some other object on the computer screen.



  1. Define the term Operating System
  2. Mention what establishes a relationship between the user and the computer machine
  3. A pictorial representation on the computer screen is called what?
  4. Mention the two types of user interface.





The topic is presented step by step

Step 1:

The class teacher revises the previous topics


Step 2:

He introduces the new topic


Step 3:

The class teacher allows the pupils to give their own examples and he corrects them when the needs arise




The class teacher wraps up or concludes the lesson by giving out a short note to summarize the topic that he or she has just taught.

The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.

He or she makes the necessary corrections when and where the needs arise.