Communicating Designs · JHS3 Career Technology

Lesson notes

Learning Objectives

Indicator: B9.5.1.1.1 - Describe prisms and pyramids and discuss the importance of developing them

By the end of the lesson, learners can:

Identify at least four types of prisms and four types of pyramids from drawings, models and everyday objects.
Sketch and label a square prism, rectangular prism, triangular prism, square pyramid and triangular pyramid.
Differentiate between prisms and pyramids using their faces, bases and front views (rectangles for prisms, triangles for pyramids).
Explain in their own words at least three reasons why developing the surfaces of objects is important before manufacturing them.
Discuss, in a small group, how developing surfaces helps minimise waste and save production time, giving one real-life example from Ghanaian industry or craftwork.

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Curriculum details

Strand: Designing and Making of Artefacts/products (Strand 5)
Sub-strand: Communicating Designs (5.1)
Content standard: B9.5.1.1 - Demonstrate understanding of developing surfaces of objects for production/ manufacturing
Indicator: B9.5.1.1.1 - Describe prisms and pyramids and discuss the importance of developing them
Suggested placement: Term 2, Week 10 (Week 22 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: Career Technology, Common Core Programme (JHS1-JHS3), 2023, p. 103
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

1. Identify types of prism and pyramid.
E.g.,
- Prisms; cylinder, square prism, triangular prism, rectangular prism
- Pyramids: cone, square pyramid, triangular pyramid, rectangular pyramid
2. Sketch types of prism and pyramid.
E.g., cone, square pyramid, triangular pyramid
3. Differentiate between prisms and pyramids.
E.g. Prisms have their front view in the form of rectangles, whereas, pyramids have their front view in the form of triangles
4. Discuss the importance of developing surfaces of objects before manufacturing them.
E.g.
- Enables easier duplication of templates
- Minimises waste of materials
- Saves time spent on production