Descriptive Geometry.

"This area is of particular importance in developing pupils ability in visual imagery and representation. Projections should initially be deALTh with in a deductive manner without reference to projection systems, but with a knowledge of planes of reference. The sequencing of the material and teaching techniques should gradually develop spatial abilities relating to imagery, orientation, and visualisation, Pupils should as a result be able to build clear images of objects in space and accurately represent these in two-dimensions. The complexity image and representation will vary according to level and ability. Although the final solution to problems in this area will normally be represented in measured drawings, pupils should be competent in representing these through freehand drawings and sketches." Technical Graphics Syllabus - An Roinn Oideachais.

The following are the sub-topics that Descriptive Geometry has been divided into.

• Orthographic Projection.
• Pictorial Drawing and Projection.
• Scaled Drawing.
• Surface Development.