Subjects / Junior Cycle / Graphics
Mapped to: Junior Cycle Graphics (specification, NCCA 2019) · official specification (NCCA). Topic names are StudyRoom's own summaries.
Strand 1: 2D Graphics
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Geometric constructionsBisect lines and angles, divide lines, and construct triangles and tangents with compass and set squares.CL 15 q
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Regular polygonsConstruct regular polygons and calculate their interior and exterior angles.CL 17 q
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LociPlot the path of a point that obeys a rule, including simple mechanisms and rolling circles.CL 16 q
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Orthographic projectionDraw related views (elevation, end view, plan) of objects in first-angle and third-angle projection.CL 16 q
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Auxiliary views and true shapesProject auxiliary views to find the true shape of inclined surfaces.CL 16 q
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Sectional viewsShow the inside of an object by cutting it with a plane and hatching the cut surface.CL 15 q
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Surface developmentsUnfold the surfaces of prisms, cylinders, pyramids and cones to make nets.CL 16 q
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Graphs and data graphicsRead and create charts, graphs, flow diagrams and infographics that communicate information clearly.CL 15 q
Strand 2: 3D Graphics
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Isometric drawingDraw three-dimensional views using axes at 30 degrees to the horizontal, including curves and circles.CL 19 q
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Oblique drawingDraw objects with a true-shape front face and receding lines at an angle, in cavalier and cabinet styles.CL 15 q
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Perspective drawingUse horizon lines and vanishing points to create one-point and two-point perspective views.CL 15 q
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Freehand sketchingSketch ideas quickly and in proportion using crating, construction lines and shading.CL 15 q
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3D CAD modellingBuild parametric solid models using sketches, constraints and features such as extrude and revolve.CL 15 q
Strand 3: Applied Graphics
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Drawing conventions, scale and dimensioningUse standard line types, scales and dimensions so that drawings can be read by anyone.CL 15 q
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Design communication and presentationCommunicate a design idea to others using annotated sketches, rendering and presentation drawings.CL 15 q
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CAD drawings and assembliesProduce working drawings and assemblies of parts from a CAD model.CL 15 q
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Geometry in nature and designRecognise geometric forms and proportions such as spirals, hexagons and the golden ratio in nature, buildings and products.CL 15 q