Junior Certificate Technical Graphics
description
Transcript of Junior Certificate Technical Graphics
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Junior Certificate Technical Graphics
Introduction or Tester Programme
SectorSemicircle
Quadrant
Segment
Diamete
r Radius
Normal
Tange
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Technical GraphicsCommunicates Information
Technical Graphics is a Universal Language
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• 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.
What is Technical Graphics
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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
What will I learn in Technical Graphics?
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Communication skills Problem solving skills Computer skills Creative thinking skills
Skills developed in Technical Graphics
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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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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
Is Technical Graphics Useful in Other Subjects?
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Project Maths
Technical Graphics
The Relationship between …
Applications of Geometry and Problem
Solving
Technical Graphics
Project Maths
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Ordinary Level◦Paper 2◦Leaving Certificate
Some Examples......
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Higher Level◦Paper 2◦Leaving Certificate
Some Examples......
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Some Examples......
Higher Level◦Paper 2◦Leaving Certificate
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P
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Gridlines
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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
Learning Aims and Objectives
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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 3 & 4
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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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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
Learning Aims and Objectives
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Equilateral Triangle Square
Pentagon Hexagon Heptagon
Octagon Nonagon Decagon Circle
Polygons
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Pentagons
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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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Set your compass at the required radius and do not change it.
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Octagons
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Activity 19
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The Ellipse
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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
Learning Aims and Objectives
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Ellipse
Ellipse
Cylinder
Ellipse
Cone
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Ellipse: Applications
Inside an Atom
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Activity 25 & 26
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½ Minor AxisTrammel Method
½ Major Axis
Min
or A
xis
Major Axis
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Activity 25
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Major Axis
Min
or A
xis
Major Circle
Minor Circle
30°60°
½Major Axis
F2F1
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Visualization Exercises
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