Lesson Notes By Weeks and Term v4 - SHS 3

ELECTRONIC COMPONENTS AND CIRCUITS

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  2. Lesson Notes By Weeks and Term v4
  3. SHS 3
  4. ELECTRONIC COMPONENTS AND CIRCUITS

Subject: Applied Technology

Class: SHS 3

Term: 2nd Term

Week: 17

Grade code: 2.5.2.LI.6

Strand code: 4

Sub-strand code: 2

Content standard code: 2.5.2.CS.1

Indicator code: 2.5.2.LI.6

Theme: ELECTRICAL AND ELECTRONIC TECHNOLOGY

Subtheme: ELECTRONIC COMPONENTS AND CIRCUITS

Lesson Video

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Performance objectives

Lesson summary

This lesson introduces Boolean Algebra, the fundamental mathematics that underpins all digital electronics. It is the "language" that computers, smartphones, traffic lights, and many automated systems use to make decisions. For us in Ghana, understanding this helps us grasp how the digital devices we use daily—from our phones for mobile money transactions to the automated systems in modern factories—actually work. By learning how to simplify complex logical statements, we are learning the very principles used to design more efficient and faster electronic circuits. This knowledge is a gateway to careers in computer engineering, software development, and electronics repair.

Lesson notes

This section breaks down the core concepts of Boolean Algebra. We will approach it step-by-step. Focal Area 1: Elements of Boolean Algebra

Boolean Algebra works with a very simple idea: a statement is either TRUE or FALSE. In electronics, we represent these states with numbers: 1 represents TRUE (or HIGH, ON, Closed circuit) 0 represents FALSE (or LOW, OFF, Open circuit)

The main elements are: Boolean Variables: These are letters (like A, B, C, X, Y) used to represent a logical statement or the input/output of a circuit. A variable can only have one of two values: 1 or 0. Boolean Constants: These are the two fixed values in the system: 1 and 0. Boolean Operators: These are the symbols that perform logical operations on the variables. Focal Area 2: Operations or Functions of Boolean Algebra

There are three fundamental operations you must know.

Evaluation guide