SHS2 Applied Technology · Semester 1 Week 11: Welding Technology

Lesson notes

Learning Objectives

Indicator: 2.2.2.LI.2 - Demonstrate forging, rolling and extrusion operations in sheet metal.

By the end of the lesson, learners can:

Describe the forging, rolling and extrusion processes in sheet metal using correct technical terms and accurate sequence of steps.
Demonstrate the forging, rolling and extrusion operations on sheet metal samples using appropriate tools and safety practices.
Compare and contrast the three operations in terms of the tools used, the nature of the force applied, and the resulting product shapes.
Identify real-world sheet metal products in Ghana that are produced through forging, rolling or extrusion and explain which process was used and why.
Work collaboratively in mixed groups to demonstrate a selected operation, present their findings, and evaluate the demonstrations of other groups.

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Curriculum details

Strand: Metal Technology (Strand 2)
Sub-strand: Welding Technology (2.2)
Content standard: 2.2.2.CS.1 - 2.2.2.CS.1 Demonstrate knowledge and understanding of key processes, tools and equipment for welding 2.2.2.LO.1 Apply knowledge of key processes and tools in welding technology and fabrication to carry-out tasks on sheet metal projects
Indicator: 2.2.2.LI.2 - Demonstrate forging, rolling and extrusion operations in sheet metal.
Suggested placement: Semester 1, Week 11 (Week 11 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. 83

Exemplars (from the NaCCA curriculum)

Group work/collaborative learning: Group learners to describe and demonstrate precisely the processes involved in forging, rolling and extrusion operations in sheet metal.
Experiential learning: Learners embark on an educational visit to a local workshop and observe forging, rolling and extrusion processes and present a report to the class.

Assessment (2.2.2.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 3 Strategic reasoning.

Teaching and Learning Materials:
- metal forming tools
- sketches /chart
- video/YouTube
- industrial visit
- Sheet metal tools
- real object
- Soldering equipment