Semicircle
Quadrant
Introduction or Tester Programme
Technical Graphics is a Universal Language
•
•
•
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.




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




Communication skills
Problem solving skills
Computer skills
Creative thinking skills
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
Technical Technical
Graphics Graphics
Applications
of Geometry
and Problem
Solving
Project
Maths
Project
Maths
 Ordinary
Level
◦Paper 2
◦Leaving Certificate
 Higher
Level
◦Paper 2
◦Leaving Certificate
 Higher
Level
◦Paper 2
◦Leaving Certificate
Q
R
P

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
Activity 1
Activity 1
Activity 2
Activity 2
Activity 3 & 4
Activity 3 & 4
Activity 5
Activity 5
5
4
3
1
2
3
2
4
5
2
1
1
3
2
2
3
4
3
4
5
4
5
4
4
3
2
1
1
5
3
2
4
5
4
3
4
3
2
3
2
1
2
1
5
4
3
2
1
2
3
4 5
Activity 6
Activity 6

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
Polygons
Equilateral Triangle
Octagon
Square
Nonagon
Pentagon
Decagon
Hexagon
Heptagon
Circle
Activity 7
Activity 7
1
2
5
4
3
Activity 8
1
Activity 8
2
5
4
3
Activity 9
1
Activity 9
2
5
4
3
Activity 10
Activity 10
Set your
compass at
the required
radius and do
not change it.
4
5
3
6
2
1
Activity 11
Activity 11
4
3
5
2
6
1
Activity 12
Activity 12
4
3
5
2
6
1
Activity 13
Activity 13
4
3
5
2
6
1
Activity 14
Activity 14
4
3
5
2
6
1
Activity 15
Activity 15
4
10
5
9
11
8
12
6
3
7
1
2
Activity 16
Activity 16
4
7
5
3
9
8
2
6
1
Activity 17
Activity 17
4
10
5
8
11
6
3
9
12
7
1
2
Activity 18
Activity 18
4
10
5
9
11
8
12
6
3
7
1
2
Activity 19
Activity 19
6
5
4
7
3
8
1
2
Activity 20
Activity 20
5
4
6
7
3
2
8
1
Activity 21
Activity 21
5
4
6
7
3
2
8
1
Activity 22
Activity 22
5
4
6
7
3
2
8
1
Activity 23
Activity 23
5
4
6
7
3
2
8
1
Activity 24
Activity 24
5
4
6
7
3
2
8
1

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
Ellipse
Ellipse
Cylinder
C
Inside an
Atom
Activity 25 & 26
Activity 25
½ Minor Axis
A
B
½ Major Axis
Minor Axis
P
Major Axis
Activity 26
Minor Axis
Major Circle
Major Axis
F1
F2
Minor Circle
Activity 27
Activity 28
Activity 29
Activity 30
Activity 31
1
3
1
3
2
3
2
3
3
3
3
4
4
2
2
3
Activity 32
2 3 2 1
1 2 3 1
1 4 1 1
2 1 1
Activity 33
3 4
1 2 2
2 4 2 2
4
Activity 34
1 3
3
3 3 4 4
1 1 2