Teaching PowerPoint Presentation - Boolean Logic

Boolean logic is taught across 40 editable PowerPoint slides that move from George Boole and transistors through AND/OR/NOT truth tables and logic gates to Python expressions and an alarm-system application.

Year groups: Years 9–11
Pages: 40
File type: Microsoft PowerPoint
Answer key: Included

Updated Nov 01, 2023

Subject: Science
Topic: Computing, Boolean Logic
Resource types: Presentations, Teacher Tools
Answer key: Included

From the author

About this resource

These adaptable PowerPoint Presentations can be used by the teacher in class to guide students through the topic - Boolean Logic. The teacher can use each slide to explain the concept in relation to computer programming. Alternatively, they can be used by the students independently to gain an understanding of how Boolean Logic is used in computer programming. Where required examples use the programming language Python.

The resources includes 40 Slides that cover a range of topics including:

The use of Simple Logic Diagrams that use AND, OR & NOT
The use of Truth Tables - In Boolean logic, i.e. each statement is a comparison, and each comparison gives a Boolean value – True or False.
The combining of Boolean Operators - AND, OR & NOT
Applying Logical Operators in Truth Tables to solve problems

Objective: After students have had the opportunity to view the presentation slides, discuss the content and answer the questions that make up the checkpoints, they will have a clear knowledge of Boolean Logic and how it is used in programming.

Age/Grade: They are designed to be used for home learning or in the classroom for any age group learning Computer Science. They are probably best suited for 14-16 year olds.

Answer Key: Included with the presentation slides are a number of questions for students to consider and discuss.

The format used is PowerPoint which can easily be adapted by the teacher.

In the classroom

Teaching tips & learning objectives

Learning objectives

Define the AND, OR, and NOT operators and evaluate expressions that combine them
Complete truth tables for single and combined Boolean operators
Draw logic diagrams and derive truth tables for equations such as D=A AND (B OR C)
Translate Boolean expressions into Python syntax and predict program output
Model a real-world system (a burglar alarm) as a Boolean equation

Teaching tips

Run the CHECKPOINT slides as whole-class questioning — each question slide has a matching reveal slide, so click-through pacing controls the answer moment
Bridge from the transistor slide to the operator definitions to keep the 'why' (binary hardware) attached to the algebra
Set the four diagram-and-truth-table exercises (Z=NOT(X OR Y) and friends) as paired work before showing the worked answer slides
Extend into a coding lesson with the Python slide — the same expressions students just evaluated by hand become runnable code
Since the file is a native PowerPoint, edit the checkpoint values to generate fresh practice rounds

Skills covered

Boolean operator evaluation — students decide whether expressions like x==y/2 and x>=9 come out True or False.
Truth-table construction — dedicated slides and exercises build tables for AND, OR, NOT, and multi-operator equations.
Logic-diagram drawing — four checkpoint tasks require a diagram plus truth table for combined-gate equations.
Applying logic to systems — the alarm-system slides turn sensors and a switch into S=(D OR L) AND A.
Reading Boolean code — closing slides ask what output Python programs will produce.

Good to know

Questions teachers ask about this resource

How are the practice questions built into the deck?

As CHECKPOINT slides scattered through the sequence: a question slide poses an expression or task, and the next slide repeats it with the answer revealed — True/False for the expression checks, and worked diagrams and truth tables for the four logic-gate exercises.

Does the deck connect Boolean logic to programming?

Yes — after the gates section it shows how expressions such as Z=NOT(X==5 AND Y==8) are written in Python, and the final checkpoint asks students to predict the output of short Python programs.