Classification of Materials · SHS2 Manufacturing…

Lesson notes

Learning Objectives

Indicator: 2.1.1.LI.2 - Explain the chemical properties of materials as reactivity, flammability and toxicity.

By the end of the lesson, learners can:

Define reactivity, flammability and toxicity as chemical properties of materials in their own words.
Explain what causes a material to be reactive, flammable or toxic using simple examples.
Classify materials found in their local community into reactive, flammable or toxic categories using a table.
Justify the classification of a given material by linking its chemical property to real-world safety handling.
Work collaboratively in mixed-ability groups to research and present findings on at least one chemical property of materials.

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Curriculum details

Strand: Manufacturing Materials and Technologies (Strand 1)
Sub-strand: Classification of Materials (1.1)
Content standard: 2.1.1.CS.1 - Demonstrate knowledge and understanding of chemical properties and structure of materials. 2.1.1.LO.1 Classify materials as metals, ceramics and polymers based on their chemical properties, structure, synthesis and processing methods. 3 Gender Equality and Social Inclusion 4 Socio-Emotional Learning
Indicator: 2.1.1.LI.2 - Explain the chemical properties of materials as reactivity, flammability and toxicity.
Suggested placement: Semester 1, Week 2 (Week 2 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. 52

Exemplars (from the NaCCA curriculum)

Collaborative Learning: Learners in mixed-ability groups read from the library on reactivity, flammability and toxicity as chemical properties of materials and present their results to the class for feedback.
Talk for Learning: Learners group materials available in the local community based on their reactivity, flammability and toxicity using tables. Use questioning for learners to talk about the various materials. Use mind mapping to organise learners' thoughts.
structure.
Teaching and Learning Materials:
- Textbooks
- Educational tour around the community
- Library
- Audio-visuals
- ICT equipment
Assessment (2.1.1.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning.