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Junior Certificate Technical Graphics

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## Junior Certificate Technical Graphics

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**Tangent**Junior Certificate Technical Graphics Semicircle Normal Diameter Radius Introduction or Tester Programme Quadrant Sector Chord Segment**Technical GraphicsCommunicates Information**Technical Graphics is a Universal Language**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 communicateideas or solve problems.**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**Skills developed in Technical Graphics**• Communication skills • Problem solving skills • Computer skills • Creative thinking skills**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**The Relationship between …**Technical Graphics Project Maths Applications of Geometry and Problem Solving Project Maths Technical Graphics**Some Examples......**• Ordinary Level • Paper 2 • Leaving Certificate**Some Examples......**• Higher Level • Paper 2 • Leaving Certificate**Some Examples......**• Higher Level • Paper 2 • Leaving Certificate**Q**R P**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**Activity 5**5 1 4 3 2 3 5 4 2 2 1 1 3 2 2 4 3 3 4 4 5 5 5 1 4 3 3 2 1 4 2 4 4 5 4 3 3 3 2 2 2 1 1 5 4 3 3 2 1 4 2 5**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**Polygons**Hexagon Heptagon Square Equilateral Triangle Pentagon Octagon Nonagon Decagon Circle**Activity 7**1 2 5 4 3**1**Activity 8 2 5 4 3**Activity 9**1 2 5 4 3**Activity 10**4 Set your compass at the required radius and do not change it. 5 3 6 2 1**Activity 11**4 3 5 2 6 1