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== Teaching Learning Activities ==
== Teaching Learning Activities ==


1. I will begin the class by describing about 3D object representation<br>
1. I will begin the class by describing projection as a fundamental concept in computer graphics that involves the conversion of three-dimensional (3D) objects into a two-dimensional (2D) view plane or screen.<br>
2. Then categorize 3D object representation into 2 parts: Boundary representations and Space–partitioning representations and discuss about them.<br>
2. Then categorize its type: Parallel projection and Perspective projection.<br>
3. I will draw three figures in the whiteboard(triangle, rectangle, hexagon) and ask students what common thing did you find in those figures.<br>
3. At first I will define parallel projection use to display picture in its true shape and size.<br>
4. Some students will answer the line segment is common.<br>
4. Discuss the types of parallel projection: orthographic projection and oblique projection by illustrating figure in the whiteboard.<br>
5. Ask students about what they know about polygons.<br>
5. Discuss the how orthographic projections used to produce the front, side, and top views of an object by showing figure from the projector.<br>
6. By showing the figures from whiteboard I will define the polygon is a plane figure that is made up of straight line segments connected to form a closed shape.<br>
6. By showing the figures from whiteboard I will define the polygon is a plane figure that is made up of straight line segments connected to form a closed shape.<br>
7. Describe about polygon surfaces.<br>
7. After parallel projection I will define perspective projection; objects that are farther away from the viewer appear smaller, imparting a sense of depth to the representation.<br>
8. Discuss the importance of polygon tables in 3D graphics and rendering.<br>
8. Discuss about the important two key feature of parallel projection: foreshortening and vanishing point with figure.<br>
9. Introduce three table that polygon tables consist of: vertex table, edge table, and surface table.<br>
9. Then discuss the types of perspective projection with figure: one-point perspective, two-point perspective and three-point perspective.<br>
10. Present how vertex table, edge table and surface table are created from whiteboard.<br>
10. At last I will ask students to write the difference between parallel projection and perspective projection.<br>
11. Discuss about polygon meshes with its advantages and disadvantages.<br>
11. Ask students if there is any confusion on today's topic and provide guidance and assistance if needed.
12. Show the figure of polygon meshes from projector.<br>
13. Discuss the equation for plane surface: Ax + By + Cz + D = 0 using the coordinate values.<br>
14. Ask students if there is any confusion on today's topic and provide guidance and assistance if needed.


== Assessment ==
== Assessment ==
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