SHS1 Applied Technology · Semester 2 Week 1: Electronic Devices and Circuits

Lesson notes

Learning Objectives

Indicator: 1.3.2.LI.1 - Explain the concept of electrical and electronic circuits

By the end of the lesson, learners can:

Define electrical circuit and electronic circuit in their own words, citing at least one key difference between them.
Identify the four basic components of an electrical circuit (source, conductor, load, and control/switch) from a diagram or physical setup.
Differentiate between electrical and electronic circuits by comparing at least three features such as current level, function, component types, and control method.
Classify common Ghanaian appliances and devices (for example, an electric iron, a phone charger, a radio) as either electrical or electronic circuits, giving reasons for each choice.
Work in pairs to brainstorm and present a labelled sketch of one simple circuit, explaining how current flows through it.

This lesson opens the topic of diodes in electronics. Learners will meet diodes physically and in circuit diagrams in Week 2, so today’s focus is on building the foundational distinction between ordinary electrical circuits and the electronic circuits in which diodes operate.

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Curriculum details

Strand: Electrical and Electronic Technology (Strand 3)
Sub-strand: Electronic Devices and Circuits (3.2)
Content standard: 1.3.2.CS.1 - 1.3.2.CS.1 Demonstrate understanding of Diodes as electronic devices and apply them in designing electronic circuits. 1.3.2.LO.1 Employ knowledge of the construction and operation of diodes to design and construct electronic circuits.
Indicator: 1.3.2.LI.1 - Explain the concept of electrical and electronic circuits
Suggested placement: Semester 2, Week 1 (Week 21 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)

Talk for learning / collaborative learning: Engage learners in think pair share and task them to brainstorm on the meaning of electrical and electronic circuits as well as differentiate between electrical and electronic circuits.

Assessment (1.3.2.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall; Level 2 Skills of conceptual understanding.

Teaching and Learning Materials:
- power diode
- Zener diode
- LED
- infrared diode
- photo diode
- signal generator
- Oscilloscope
- Capacitors
- computer installed with multism application