Consumer Electronics · SHS1 General Science

Lesson notes

Learning Objectives

Indicator: 1.3.3.LI.1 - Explain the uses of electronic components in household electronic devices and amplifiers.

By the end of the lesson, learners can:

Identify at least five basic electronic components (resistor, capacitor, diode, LED, transistor, switch) and state the function of each in a household device.
Explain how resistors, capacitors, diodes, and transistors work together in a simple circuit to perform a useful task.
Describe the role of a transistor in an amplifier and explain how a small input signal controls a larger output signal.
Trace the function of key electronic components in at least two common household devices found in their own homes (for example, a radio, phone charger, television, or LED lamp).
Build and test a simple transistor-based amplifier circuit using provided components, and explain what each part does in the circuit.

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Curriculum details

Strand: Vigour Behind Life (Strand 3)
Sub-strand: Consumer Electronics (3.3)
Content standard: 1.3.3.CS.1 - Demonstrate knowledge and recognition of selected electronic components and their uses in Household Electronic devices. 1.3.3.LO.1 Identify selected electronic components and their uses in household electronic gadgets and the use of amplifiers.
Indicator: 1.3.3.LI.1 - Explain the uses of electronic components in household electronic devices and amplifiers.
Suggested placement: Semester 2, Week 7 (Week 27 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. 48

Exemplars (from the NaCCA curriculum)

- Guide learners to revise the basic components of electronics from the JHS curriculum using Talk for Learning approaches and internet resources.
- Demonstrate to learners how basic components of electronics are used in circuits and electronic devices using simulations, pictures, charts and realia.
- In mixed-sex and differentiated groupings, learners design circuits involving transistors and switches and use them to build amplifiers.
- Address stereotypes related to electronic components and household devices and encourage all learners to actively participate in learning activities.
Teaching and Learning Resources:
- Capacitor, LED, transistors, resistors, diodes, switches
- Pictures/charts/videos of simple amplifiers.
Assessment (1.3.3.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding.