The Grade 12 Engineering Graphics and Design (EGD) curriculum is a technical journey that bridges the gap between conceptual design and precise manufacturing/construction. For the Class of 2026, success in the National Senior Certificate (NSC) requires mastering complex mechanical assemblies, civil working drawings, and the Practical Assessment Task (PAT).
This guide outlines the 2026 EGD Annual Teaching Plan (ATP), providing a structured weekly roadmap to help learners and teachers navigate the syllabus from isometric drawing to loci and mechanisms.
Engineering Graphics and Design Grade 12 ATP 2026
The curriculum is divided into four terms, focusing on specific drawing disciplines (Civil and Mechanical) and the continuous development of the PAT.
Term 1: Mechanical, Civil & Isometric Drawing
Focus: The year starts with complex mechanical drawings and moves into civil working drawings and advanced isometric projections.
- Weeks 1–2: Mechanical Drawing
- Type: 3rd angle orthographic working drawings (non-sectional, sectional, half-sectional, part-sectional).
- Content: Complex mechanical assemblies including bolts, nuts, keys, keyways, and welding symbols.
- Detail: Title blocks, tolerances, and surface treatment symbols.
- Weeks 3–6: Civil Drawing
- Type: 1st angle orthographic working drawings for single-storey dwellings.
- Content: Floor plans, elevations, and sectional elevations showing foundation-to-roof detail.
- Features: Plumbing, drainage, electrical fixtures, and site plans.
- Weeks 7–9: Isometric Drawing
- Content: Complex isometric drawings with auxiliary views, circles, and sections.
- Skill: Converting 2D orthographic views into 3D isometric drawings.
- Week 10: 2-Point Perspective
- Content: Perspective drawings of complex castings, dwellings, and civil structures with overhangs and depth detail.
- PAT Phase 1: Completion of design brief, specifications, and freehand solutions.
Term 1 Assessments
- Course Drawings (CD): Mechanical Assembly, Mechanical Analytical, Civil Floor Plan, Civil Sectional Elevation, Civil Site Plan, 2-Point Perspective.
- Formal Assessment: Drawings contribute 100% to the Term 1 mark.
Term 2: Solid Geometry & Interpenetration
Focus: The second term delves into the geometry of solids, interpenetration, and continues the PAT.
- Weeks 1–2: Isometric Drawing (Continued)
- Continuation of complex isometric drawings from Term 1.
- Weeks 3–4: Solid Geometry
- Content: 1st angle orthographic views of solids (prisms, pyramids, cylinders, cones) with holes.
- Axis: Perpendicular, parallel, or inclined to one principal projection plane.
- Weeks 5–8: Interpenetration & Development
- Content: Curves of interpenetration between two solids/tubes joined at 30°, 45°, 60°, or 90°.
- Solids: Prisms (3, 4, 5, 6, 8 sides) and cylinders.
- Development: Surface developments of the interpenetrating parts.
- PAT Phase 2: Completion of working drawings and pictorial (3D) drawings for the specific scenario.
Term 2 Assessments
- Course Drawings (CD): Isometric Drawing, Solid Geometry, Interpenetration & Development, 2nd Mechanical Assembly.
- Mid-Year Examination:
- Paper 1 (Civil): 3 hours (Civil analytical, Solid geometry, 2-Point perspective, Civil working drawing).
- Paper 2 (Mechanical): 3 hours (Mechanical analytical, Interpenetration, Isometric, Mechanical assembly).
Term 3: Loci, Cams & Mechanisms
Focus: The third term explores the path of points (Loci) through cams and mechanisms, finalizing the PAT.
- Weeks 1–2: Interpenetration (Continued)
- Continuation of complex interpenetration and development.
- Weeks 3–5: Loci (Cam)
- Content: Cam shaft and follower detail, displacement graph, and cam profile.
- Motion: Uniform, simple harmonic, and uniform acceleration/retardation.
- Weeks 6–7: Loci (Mechanisms)
- Content: Loci of points on schematic drawings of moving mechanism components (max 3 points).
- Weeks 8–9: Loci (Helix)
- Content: Principles of the helix in applications like augers and coil springs (Note: This is often non-examinable, check specific year guidelines).
- PAT Phase 3: Final presentation and self-assessment.
Term 3 Assessments
- Course Drawings (CD): 2nd Interpenetration, Loci of Cam, Loci of Mechanism, 3rd Mechanical Assembly.
- Preparatory Examination: Full scale Paper 1 (Civil) and Paper 2 (Mechanical).
Term 4: Final Assessment
Focus: The final term is dedicated to revision and the external NSC examinations.
- Week 1: Transition Pieces (Non-examinable content).
- Weeks 2–4: Revision using previous NSC exam papers.
- Final Assessment:NSC Final Examinations.
- Paper 1 (Civil): 3 hours. Focus on Civil Analytical, Solid Geometry, 2-Point Perspective, and Civil Working Drawing.
- Paper 2 (Mechanical): 3 hours. Focus on Mechanical Analytical, Loci (Cam/Mechanism), Isometric Drawing, and Mechanical Assembly.
FAQ: EGD Grade 12
Q: What is the difference between Paper 1 and Paper 2? A:
- Paper 1 is the Civil paper (1st angle projection). It covers Civil Analytical, Solid Geometry/Interpenetration, 2-Point Perspective, and a major Civil Working Drawing (floor plans, elevations).
- Paper 2 is the Mechanical paper (3rd angle projection). It covers Mechanical Analytical, Loci (Cams/Mechanisms), Isometric Drawing, and a major Mechanical Assembly drawing.
Q: Does the PAT count towards my final mark? A: Yes, the Practical Assessment Task (PAT) is compulsory and contributes significantly to your final grade. It is assessed in three phases throughout the year (Term 1, 2, and 3) but is not part of the School-Based Assessment (SBA) calculation itself; it stands as a separate component.
Q: Which projection method must I use? A: You must strictly adhere to 1st Angle Projection for all Civil drawings (Paper 1) and 3rd Angle Projection for all Mechanical drawings (Paper 2).