Class: Senior Secondary School 1 (SS1, SS 1, SSS1, SSS 1)
Term: 3rd Term
Week: 7
Age: 15 years
Duration: 45 minutes
Subject: Visual Art
Curriculum Theme: Visual Art
Previous Lesson: Introduction to Modelling: Ceramics Meaning, Clay Types, Tools and Uses.
Topic: Introduction to Computer Graphics
Subject Matter: Meaning of computer software, examples of graphics software (CorelDRAW, Adobe Photoshop), basic mouse techniques (pointing, clicking, double clicking, dragging)

Specific Objectives

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

Cognitive Domain:

Define computer graphics.
Define computer software.
List examples of graphics software such as CorelDRAW and Adobe Photoshop.
State the meaning of pointing, clicking, double clicking, and dragging with a mouse.

Affective Domain:

Show interest in using the computer for creative art tasks.
Demonstrate a careful attitude when handling computer equipment.

Psychomotor Domain:

Use the mouse to point to objects on the screen correctly.
Perform clicking, double clicking, and dragging actions correctly.
Open a graphics application using double click and select tools by clicking.

Work in pairs to practise mouse techniques and support one another.
Participate in class discussion by giving examples of where computer graphics are used.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum
State Unified Scheme of Work
Visual Art for Senior Secondary Schools (Textbook)
Adobe Help: Photoshop basics and fundamentals
CorelDRAW Graphics Suite overview
Microsoft Support: Change mouse settings

Instructional Materials

The teacher will teach this lesson with the aid of:

Computer system with mouse and keyboard
Projector or large monitor (if available)
Installed graphics software (CorelDRAW and/or Adobe Photoshop)
Sample pictures/graphics for demonstration
Scanner and digital camera (for showing sources of images)
Whiteboard and marker

Rationale for the Lesson

Computer graphics is used in posters, adverts, social media designs, and school projects. Learning the meaning of graphics software and correct mouse handling helps pupils work faster and produce neat digital artworks.

Prerequisite/Previous Knowledge

Pupils have basic knowledge of computer parts and have seen the computer desktop, icons, and mouse pointer.

Lesson Content/Board Summary

Introduction to Computer Graphics

Meaning of Computer Graphics

Computer graphics is the creation, editing, and display of pictures, drawings, and designs using a computer.

The following are common uses of computer graphics:

Poster and flyer design
Logo and branding design
Photo editing and retouching
Illustration and digital drawing
Presentation and publication design

Meaning of Computer Software

Computer software is a set of programs or instructions that tells a computer what to do.

The following are examples of computer software:

Operating systems (e.g., Windows)
Word processing software (e.g., Microsoft Word)
Graphics software (e.g., CorelDRAW, Adobe Photoshop)
Web browsers (e.g., Chrome)

Examples of Graphics Software

Graphics software are programs used for drawing, designing, and editing images on a computer.

The following are examples of graphics software:

CorelDRAW
Adobe Photoshop
Corel PHOTO-PAINT
Adobe Illustrator

Basic Mouse Techniques in Computer Graphics

Mouse techniques are simple actions used to control the pointer and select tools or objects on the screen.

Pointing with the Mouse

Pointing means moving the mouse so that the pointer rests on an item (icon, menu, tool, or object) on the screen.

The following are uses of pointing:

Selecting a tool before clicking
Placing the cursor at a location on the screen
Indicating an object to be edited

Clicking with the Mouse

Clicking means pressing and releasing the left mouse button once to select an item.

The following are common results of clicking:

Selects an icon or object
Chooses a tool in a graphics program
Places the insertion point in a text box

Double Clicking with the Mouse

Double clicking means pressing the left mouse button twice quickly to open a program, file, or folder.

The following are common uses of double clicking:

Opening a graphics software from the desktop
Opening a saved picture file
Opening a folder that contains images

Dragging with the Mouse

Dragging means clicking and holding the left mouse button while moving the mouse to a new position, then releasing the button.

The following are common uses of dragging:

Moving an object (shape, image, text) to a new position
Selecting many items by dragging a selection box
Resizing an object by dragging a handle

Teaching Methods/Instructional Techniques

Discussion, Lecture, Demonstration, Question and Answer, Visual Aids

Instructional Procedures

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher asks pupils where they see digital designs (posters, adverts, logos) and introduces computer graphics as digital art created with a computer.
Pupils’ Activity: Pupils respond with examples and listen attentively.
Learning Point: Computer graphics is used in daily life for designs and pictures.

Step 2: Meaning of Computer Graphics and Computer Software

Time: 7 minutes
Teaching Skill: Explanation
Teacher’s Activity: The teacher defines computer graphics and computer software, then writes key points on the board for pupils to copy.
Pupils’ Activity: Pupils listen, ask questions where necessary, and copy notes.
Learning Point: Computer graphics involves creating/editing images with a computer, while software is the program that makes tasks possible.

Step 3: Examples of Graphics Software

Time: 6 minutes
Teaching Skill: Illustration
Teacher’s Activity: The teacher lists graphics software (CorelDRAW, Adobe Photoshop) and explains what they are used for in design and photo editing.
Pupils’ Activity: Pupils mention other software they have heard of and copy the examples.
Learning Point: Graphics software helps users create designs and edit images.

Step 4: Demonstration of Pointing and Clicking

Time: 7 minutes
Teaching Skill: Demonstration
Teacher’s Activity: The teacher demonstrates how to hold the mouse, move the pointer, point to icons/tools, and click to select items in a graphics program or on the desktop.
Pupils’ Activity: Pupils practise pointing and clicking in turns or in pairs on available computers.
Learning Point: Pointing positions the pointer, while clicking selects an item or tool.

Step 5: Demonstration of Double Clicking and Dragging

Time: 6 minutes
Teaching Skill: Demonstration
Teacher’s Activity: The teacher demonstrates double clicking to open a program/file and dragging to move an object or select items on the screen.
Pupils’ Activity: Pupils practise double clicking to open an app and dragging to move objects or highlight items.
Learning Point: Double clicking opens items, while dragging moves or selects objects.

Step 6: Guided Practice and Supervision

Time: 4 minutes
Teaching Skill: Supervision/Coaching
Teacher’s Activity: The teacher supervises practice, corrects wrong mouse handling, and ensures pupils perform each action correctly.
Pupils’ Activity: Pupils practise the four mouse actions and assist their partners where needed.
Learning Point: Correct mouse techniques improve speed and accuracy during graphics work.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

Define computer graphics.
Define computer software.
Mention two examples of graphics software.
State the meaning of clicking, double clicking, and dragging with a mouse.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 5 minutes
Teaching Skill: Summary
Teacher’s Activity: The teacher summarizes the lesson, emphasizes correct mouse handling, and gives a short classwork: list four mouse techniques and write one use of each.
Pupils’ Activity: Pupils respond to the summary questions and write the classwork.
Learning Point: Computer graphics uses software, and mouse techniques are needed to work effectively on the computer.

Lesson Keywords

Computer Graphics – Creating and editing images and designs using a computer.
Software – Programs that instruct the computer to perform tasks.
Graphics Software – Programs used for drawing, designing, and editing images.
Pointing – Moving the pointer to rest on an item on the screen.
Clicking – Pressing and releasing the left mouse button once.
Double Clicking – Pressing the left mouse button twice quickly to open an item.
Dragging – Holding the left mouse button while moving the mouse to move/select items.

Differentiation

Pupils who learn faster will be asked to open the graphics software and identify at least three tools by clicking them, while pupils who need support will practise the four mouse actions with the teacher’s guidance and peer support.

Note for teachers using this lesson plan

Ensure enough time for hands-on practice because mouse control improves mainly through doing. If computers are limited, use pair work and rotate turns while the rest of the class copies the board summary and answers short questions.