SHS1 Engineering · Semester 1 Week 14: Circuit and Machines

Lesson notes

Learning Objectives

Indicator: 1.2.1.LI.1 - Identify the basic elements of DC electric and electronic circuit and sketch their circuit symbols

By the end of the lesson, learners can:

Define a DC circuit and an AC circuit and state at least two differences between them.
Identify at least six basic elements of DC electric and electronic circuits from physical components or pictures.
State the function of each basic circuit element (resistor, capacitor, inductor, switch, battery, diode, etc.).
Sketch the standard circuit symbol for each basic element introduced in the lesson.
Distinguish between an electric circuit and an electronic circuit using simple examples from everyday life.

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Curriculum details

Strand: Energy Systems (Strand 2)
Sub-strand: Circuit and Machines (2.1)
Content standard: 1.2.1.CS.1 - Demonstrate knowledge of simple electric circuits based on first principles and through simulation tools. 1.2.1.LO.1 Identify and explain the functions of the elements of dc and ac circuits. 1.2.1.LO.2 Analyse simple dc and single-phase ac circuits.
Indicator: 1.2.1.LI.1 - Identify the basic elements of DC electric and electronic circuit and sketch their circuit symbols
Suggested placement: Semester 1, Week 14 (Week 14 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. 36

Exemplars (from the NaCCA curriculum)

Managing Talk for Learning: Learners share experiences on the application and components of electric circuits they have observed or built. Initiating Talk for Learning: The facilitator explains the differences between electric and electronic circuits. He/She further explains the application of electric circuits, introduces the basic elements of dc and ac circuits (including their functions), and distinguishes DC and AC circuits. The facilitator aids learners in sketching the symbols of the circuit elements Digital Learning: Learners watch videos on the elements of dc and ac circuits. They also inspect circuit elements at the laboratory and share their observations

Assessment (1.2.1.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 Resources:
- Projector
- Laptop
- Videos on dc and ac circuit elements
- Assorted dc and ac electric circuit elements (e.g., Inductors, capacitors, resistors, switches, etc.)
- Whiteboard and marker
- Whiteboard and marker
- Simulation software (e.g., Proteus)