Digital Electronics · SHS2 Physics

Lesson notes

Learning Objectives

Indicator: 2.3.3.LI.4 - Describe combinational logic applications and microcontroller.

By the end of the lesson, learners can:

Explain what a combinational logic circuit is and identify at least three real-world applications where combinational logic is used.
Analyse a given combination logic circuit comprising AND, OR, NOT, NAND or NOR gates and describe its output for given input combinations.
Describe the features and characteristics of a microcontroller, particularly the Arduino board, and distinguish it from a general-purpose computer.
Work in mixed-ability groups to propose how an Arduino-based system could solve a basic challenge in their community, and present the idea clearly to the class.
Compare combinational logic circuits with sequential circuits, noting that combinational circuits have no memory and their output depends only on current inputs.

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Curriculum details

Strand: Electric Field, Magnetic Field and Electronics (Strand 3)
Sub-strand: Digital Electronics (3.3)
Content standard: 2.3.3.CS.2 - Demonstrate the understanding of logic gates and describe their output in a digital system. 2.3.3.LO.2 Distinguish between the working operations of analogue and digital systems as well as design and build a decision-making circuit.
Indicator: 2.3.3.LI.4 - Describe combinational logic applications and microcontroller.
Suggested placement: Semester 2, Week 15 (Week 35 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. 136

Exemplars (from the NaCCA curriculum)

Talk for Learning: Describe and explain the function of a given combination logic circuit.
Project-Based Learning: Learners in groups of mixed abilities describe the features and characteristics of an Arduino and apply in solving some basic challenges in their community.
Foster respect and inclusion in physics, creating an inclusive and welcoming classroom environment that values the contributions of individuals from all backgrounds and genders.
Explore contributions of vulnerable groups in the class.
Assessment (2.3.3.AS.4). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall; Level 2 Skills of conceptual understanding; Level 4 Extended critical thinking and reasoning.
Teaching and Learning Resources:
- Laptop/Computer
- Projector
- Internet
- Simulation lab software
- Science kit set