SHS2 Engineering · Semester 1 Week 6: Health and Safety in Engineering Practice

Lesson notes

Learning Objectives

Indicator: 2.1.2.LI.4 - Explain control measures for various hazards.

By the end of the lesson, learners can:

Define control measures and explain their purpose within the risk assessment process, recalling the five main categories of hazard control.
Classify given hazards according to the appropriate control measure category (elimination, substitution, engineering controls, administrative controls, and personal protective equipment).
Explain the hierarchy of controls and justify why certain control measures are preferred over others in given scenarios.
Propose appropriate control measures for hazards commonly found in engineering workshops and Ghanaian workplaces, giving reasons for their choices.
Evaluate the effectiveness of different control measures for a specific hazard and recommend the most suitable combination, considering cost, practicality, and worker safety.

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Curriculum details

Strand: Engineering Practice (Strand 1)
Sub-strand: Health and Safety in Engineering Practice (1.2)
Content standard: 2.1.2.CS.1 - Demonstrate understanding of risk assessment. 2.1.2.LO.1 Explain risk assessment 2.1.2.LO.2 Perform risk assessment
Indicator: 2.1.2.LI.4 - Explain control measures for various hazards.
Suggested placement: Semester 1, Week 6 (Week 6 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. 74

Exemplars (from the NaCCA curriculum)

Initiating Talk for Learning: Through questions and answers, learners mention hazards they know in pairs. Learners think and share views on control measures that can be adopted to overcome various hazards.

Assessment (2.1.2.AS.4). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall; Level 3 Strategic reasoning.

Teaching and Learning Resources:
- Projector and laptop