Properties of Materials · SHS3 Manufacturing…

Lesson notes

Learning Objectives

Indicator: 3.1.2.LI.1 - Explain the term failure of materials.

By the end of the lesson, learners can:

Define the term “failure of materials” in their own words, using at least two real-world examples.
State at least three common causes of material failure (creep, fatigue, and fracture) and give a simple description of each.
Explain the difference between material failure and normal wear or damage, using examples from everyday objects.
Identify and describe at least one example of material failure they have observed at home, school, or in their community, and explain what might have caused it.
Work collaboratively in mixed-ability groups to research and present findings on material failure, giving and receiving respectful feedback.

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Curriculum details

Strand: Manufacturing Materials and Technologies (Strand 1)
Sub-strand: Properties of Materials (1.2)
Content standard: 3.1.2.CS.2 - Demonstrate understanding of the failure of materials. 3.1.2.LO.1 Explain and measure the mechanical properties of bamboo and explain that materials can fail through creep, fatigue or fracture.
Indicator: 3.1.2.LI.1 - Explain the term failure of materials.
Suggested placement: Semester 1, Week 10 (Week 10 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)

Research-Based Learning: Learners in mixed-ability groups research on the failure of materials and present their findings to the class to receive feedback. Learners comment on the presentations in a respectful and tolerant manner
Teaching and Learning Materials:
- Library resources
- Textbooks
- Internet access
Assessment (3.1.2.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall; Level 4 Extended critical thinking and reasoning.