Junior Certificate Technical Graphics

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Junior Certificate Technical Graphics

• Introduction or Tester Programme

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Technical GraphicsCommunicates Information
Technical Graphics is a Universal Language
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What is Technical Graphics

• Technical Graphics is one of the technology
  subjects offered at junior cycle.
• In Technical Graphics students use drawing
  equipment to create precise and accurate
  drawings.
• These drawings are used to communicate ideas or
  solve problems.

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What will I learn in Technical Graphics?

• How to produce neat drawings of everyday items
• How to represent 3-D objects on paper
• How to create models of objects on the computer
• How to use freehand sketching, colouring and
  shading to represent objects

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Skills developed in Technical Graphics

• Communication skills
• Problem solving skills
• Computer skills
• Creative thinking skills

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Communication Skills
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Problem Solving Skills
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Problem Solving Skills
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Computer Skills
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Creative Thinking Skill
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Design Skills
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Is Technical Graphics Useful in Other Subjects?

• Technical Graphics can be very useful in other
  subjects such as
• Mathematics
• Construction Studies
• Materials Technology Wood
• Engineering Technology Metalwork
• Junior Leaving Certificate Technology
• Art

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The Relationship between
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Some Examples......

• Ordinary Level
• Paper 2
• Leaving Certificate

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Some Examples......

• Higher Level
• Paper 2
• Leaving Certificate

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Some Examples......

• Higher Level
• Paper 2
• Leaving Certificate

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Q
R
P
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Gridlines
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Learning Aims and Objectives

• From these exercises you will learn
• The difference between construction lines and
  finish lines
• The importance of draftsmanship
• The effect of shading and rendering on a drawing
• What indexing is, and how it can assist
  complicated drawings

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Activity 1
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Activity 1
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Activity 2
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Activity 2
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Activity 3 4
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Activity 5
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Activity 5
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Activity 6
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Activity 6
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Polygons
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Learning Aims and Objectives

• From these exercises you will learn
• The name and properties of various polygons
• What indexing is, and how it can assist
  complicated drawings
• How to construct a Hexagon using a compass
• How to construct an Octagon using a square and a
  compass
• That joining points in a different order can
  produce different shapes
• The importance of draftsmanship
• The effect of shading and rendering on a drawing

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Polygons
Hexagon
Heptagon
Square
Equilateral Triangle
Pentagon
Octagon
Nonagon
Decagon
Circle
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Pentagons
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Activity 7
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Activity 7
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Activity 8
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Activity 9
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Activity 9
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Hexagons
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Activity 10
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Activity 10
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Set your compass at the required radius and do
not change it.
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Activity 11
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Activity 11
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Activity 12
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Activity 12
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Activity 13
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Activity 13
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Activity 14
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Activity 14
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Activity 15
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Activity 15
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Activity 16
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Activity 17
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Activity 18
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Activity 18
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Octagons
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Activity 19
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Activity 19
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Activity 20
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Activity 24
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Activity 24
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The Ellipse
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Learning Aims and Objectives

• From these exercises you will learn
• How to construct an ellipse using the trammel
  method
• How to construct an ellipse using the compass
  method
• Application of the ellipse in everyday life
• The importance of draftsmanship
• The effect of shading and rendering on a drawing

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Ellipse
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Ellipse Applications
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Trammel Method
Activity 25
½ Minor Axis
P
B
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½ Major Axis
Minor Axis
Major Axis
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Activity 26
Minor Axis
Major Axis
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Visualization Exercises
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Activity 27
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Activity 28
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Activity 29
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Activity 30
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Activity 31
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Activity 32
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Activity 33
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Activity 34