SHS1 Design And Communication Technology · Semester 2 Week 11: Solid Geometry

Lesson notes

Learning Objectives

Indicator: 1.2.2.LI.2 - Construct objects in isometric, oblique and perspective.

By the end of the lesson, learners can:

Distinguish between isometric, oblique, and perspective pictorial drawings by identifying their key features (angles, axes, and vanishing points).
Construct a simple cuboid in isometric projection using a 30-degree set square and a drawing board.
Construct a cuboid in oblique projection using a 45-degree set square, maintaining correct receding axis proportions.
Construct a simple object (e.g., a book or box) in one-point perspective using a vanishing point and orthogonals.
Evaluate their own and peers’ constructions against a set of given criteria during a gallery walk.

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Curriculum details

Strand: Geometry (Strand 2)
Sub-strand: Solid Geometry (2.2)
Content standard: 1.2.2.CS.1 - 1.2.2.CS.1 Apply the concept of solid geometry in designing. 1.2.2.LO.1 Use the understanding of solid geometry to draw three-dimensional objects in isometric, oblique, perspective and design artefact base on solid geometrical figures
Indicator: 1.2.2.LI.2 - Construct objects in isometric, oblique and perspective.
Suggested placement: Semester 2, Week 11 (Week 31 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 40

Exemplars (from the NaCCA curriculum)

Talk for learning, Collaborative learning/ Group work, research: Engage learners to brainstorm in groups on the ways of drawing objects in pictorial and present their findings during class discussion

Talk for learning, Problem based learning: Use videos, board illustrations, internet surf and instruments to demonstrate the drawing of various objects in pictorial forms (Perspective, isometric and oblique). Construct solid geometrical figures in isometric, oblique and perspective using drawing instrument

Assessment (1.2.2.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 3 Strategic reasoning.

Teaching and Learning Materials:
- Models
- charts
- drawing instruments
- reference books
- drawing studio
- access to internet
- LCD Projector