Subject: Basic Technology
Class: JSS 1
Week of the Term: Week Eight
Topic: Metals – Classification, Forms, and Uses
Instructional Objectives
At the end of the lesson, students should be able to:
- Classify metals into ferrous and non-ferrous categories based on their properties.
- Identify various forms of metals and their applications in everyday life.
- Explain the uses of different types of metals in various industries.
Entry Behaviour
Students should have learned about the properties of metals and their uses from the previous lesson.
Instructional Materials
- Samples or images of different forms of metals (sheets, rods, wires, etc.).
- Chart showing classification of metals (ferrous and non-ferrous).
- Visual aids displaying the uses of various metals in industries.
Content
Classification of Metals
- Ferrous Metals: These metals contain iron and are magnetic. They are prone to rusting and corrosion. Common examples include:
- Steel: Used in construction, automotive industries, and tools.
- Cast Iron: Used in cookware, pipes, and machinery.
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- Non-Ferrous Metals: These metals do not contain iron, making them resistant to rust. They are often lighter and more malleable. Examples include:
- Aluminum: Widely used in packaging (e.g., cans), aircraft, and construction due to its lightweight nature.
- Copper: Used in electrical wiring, plumbing, and roofing due to its excellent conductivity.
- Brass: An alloy of copper and zinc, used in musical instruments, fittings, and decorative items.
Forms of Metals
- Sheet Metal: Thin, flat pieces of metal used in roofing, siding, and containers.
- Metal Rods: Long, cylindrical pieces used in construction and machinery.
- Wires: Thin strands of metal used in electrical connections and fencing.
- Metal Bars: Thick pieces used in construction, especially in reinforcing structures.
Uses of Metals in Industries
- Construction: Steel and aluminum are essential for building structures and infrastructure.
- Automotive: Metals are used in the manufacturing of vehicles, enhancing strength and durability.
- Electrical: Copper and aluminum are vital in electrical wiring, ensuring efficient conductivity.
- Manufacturing: Metals are used in producing tools, machines, and various consumer goods.
- Household Items: Metals like stainless steel and aluminum are used for kitchenware and appliances due to their durability and ease of cleaning.
Step 1: Introduction
Lesson Presentation (Step-by-Step Procedure)
Others removed.
