User:Shila Regmi/Teaching Lesson Plan 30

Subject: Computer Graphics

Period: Fourth

Topic: Output Primitives

Teaching Item: Pixel and Straight Line

Class: BICTE 6th Semester

Unit: Two

Time: 50min

No. of Students: 18

Specific Objectives:

At the end of this lesson, students will be able to:

• students will understand the concept pixels, how they are represented in digital images
• able to draw straight lines using pixel-based coordinates.

Instruction Materials:

Daily usages materials.

PowerPoint slide.

Multimedia Projector

Laptop

Teaching Learning Activities

I will start the lesson by asking students what they know about pixel . Encourage them to share their thoughts and experiences.

I will begin by discussing the concept of pixels. Define a pixel as the smallest unit of a digital image, typically a square or rectangle, representing a single color

I will explain how pixels are arranged in a grid to form digital images, where each pixel's color value is stored as numerical data.

I will discuss the importance of understanding pixels and their properties in computer graphics and image processing.

I will introduce the concept of pixel coordinates. Explain how coordinates are used to locate individual pixels within an image throught presentation slide.

Demonstrate how to represent pixel coordinates using a Cartesian coordinate system, with the origin (0,0) typically located at the top-left corner of the image.

At last, I will discuss algorithms for drawing straight lines on a pixel grid, such as the Bresenham's line algorithm.

Assessment

• What is a pixel, and how are pixels arranged in digital images? Explain the importance of understanding pixels in computer graphics.
• Describe how pixel coordinates are represented and used to locate individual pixels within an image. Provide an example of pixel coordinates for a point within a simple image.

Evaluation

• Discuss practical applications of drawing straight lines in computer graphics and image processing. Provide examples of real-world scenarios where understanding pixel coordinates and drawing straight lines are essential skills.