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JSS3: BASIC TECHNOLOGY - 1ST TERM

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  1. Materials & Processing - Timber I | Week 1
    5Topics
    |
    1 Quiz
  2. Materials & Processing - Timber II | Week 2
    3Topics
    |
    1 Quiz
  3. Processing of Materials - Metals | Week 3
    5Topics
    |
    1 Quiz
  4. Processing of Clay, Ceramics and Glass | Week 4
    5Topics
    |
    1 Quiz
  5. Methods of Producing Plastics & Rubber | Week 5
    2Topics
    |
    1 Quiz
  6. Drawing Practice - Isometric Drawing | Week 6
    4Topics
    |
    1 Quiz
  7. Oblique Projection | Week 7
    2Topics
    |
    1 Quiz
  8. Orthographic Projection | Week 8
    4Topics
    |
    1 Quiz
  9. Perspective Drawing (One - Point Perspective Drawing) | Week 9
    4Topics
    |
    1 Quiz
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i. Parallel or One-Point Perspective Drawing: In this type of drawing, the projection lines converge at a particular point known as the vanishing point. e.g. Like the one shown below:

One point perspective drawing of railway
One point perspective drawing of a railway.

The vanishing is a point that is located directly in front of the viewer’s eyes, on a ‘horizon line’ (also known as an ‘eye-level line’). Objects appear as if they are inclined to vanish towards the vanishing point, as illustrated in the photo below:

eye level

ii. Angular or Two-Point Perspective Drawing: This type contains two vanishing points and the two appear to end at a point in two directions.

7800524 orig
Two-point perspective drawing.

iii. Three-Point Perspective Drawing: Three-point perspective is often used for buildings seen from above (or below). In addition to the two vanishing points from before, one for each wall, there is now one for how the vertical lines of the walls recede. For an object seen from above, this third vanishing point is below the ground.

three point perspective
Three-point perspective.
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