The study of representing three-dimensional space in two dimensions. The fundamental skills of understanding technical drawings and principles are represented in this chapter. This chapter builds on the Orthographic Projection knowledge from Technical graphics with a greater emphasis on the the understanding and application of Auxiliary Projection. It also focuses on pictorial drawing topics such as Axonometric Projection (Isometric, Dimetric and Trimetric), The use of the Isometric scale, and Perspective Drawing/Projection.
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The construction of plane figures and the introduction of Loci. This chapter builds on the knowledge of Junior cycle Solids in Contact and focuses primarily on the use of Loci as a problem solving tool. W will learn to construct triangles, quadrilaterals and regular polygons of given side/altitude, inscribed and circumscribed about a circle. We will also apply the concepts of Projection Systems to new styles of problem.
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Building on the knowledge of the Ellipse and Parabola from Junior Cycle, conic sections are the cut sections of a cone and introduces us to new shapes such as the Hyperbola, how they are constructed and where they come from. It wall also look at tangents, vertices, focal points/spheres and the diretrix.
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The study of of lines and planes in space relative to the planes of reference. This topic explores the traces (VTH) of numerous types of plane including the oblique plane. We will determine the line of intersection and dihedral angle between 2 intersecting planes as well as determining the position in space and distance between two scew lines.
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Developing on the principles and concepts of Junior Cycle Developments, we will once again be developing (opening it out) surface geometry and also enveloping (closing it up) it. We will look at the intersection/interpenetration of 3D geometry and determine its line of intersection using cutting planes and surface elements.
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