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New
Representing algorithms using flowcharts
I can create and represent an algorithm in a flowchart.
Lesson 3 of 8
New
New
- Year 10
- AQA
Representing algorithms using flowcharts
I can create and represent an algorithm in a flowchart.
Lesson details
Key learning points
- Algorithms can be represented by flowcharts.
- Flowcharts use symbols to visually represent logic and data.
- Developing an algorithm's logic before coding makes problem solving easier.
Keywords
Flowchart - a visual representation of an algorithm or program
Symbol - a sign, shape or object that is used to represent something else
Standardise - to make one thing the same as others of that type
Common misconception
A flowchart should always be created before writing a computer program.
For simple programs, a flowchart may not be needed and could add to development time. Sometimes the program code itself might be clear enough without a flowchart.
Encourage learners to relate algorithms to everyday activities that they may already understand. Then gradually get them to apply their understanding to new problems.
Teacher tip
Equipment
Licence
This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Match the term to its definition.
Match the term to its definition.
Q2.What is computational thinking?
What is computational thinking?
a way to memorise algorithms
a programming language
a type of computer program
Q3.What is the purpose of abstraction in computational thinking?
What is the purpose of abstraction in computational thinking?
to break a problem into smaller parts
to create step-by-step instructions
to write a program in Python
Q4.Which of these is not true about algorithms?
Which of these is not true about algorithms?
they are a series of logical steps
they can solve problems
they can be implemented in different computer programs
Q5.What is the system of rules that determines the flow of instructions in a process called?
What is the system of rules that determines the flow of instructions in a process called?
Q6.How can algorithms be represented?
How can algorithms be represented?
as a flowchart
as a computer program
as a series of logical steps
Assessment exit quiz
6 Questions
Q1.What is a flowchart?
What is a flowchart?
a set of step-by-step instructions
a programming language
a system of rules for instructions
Q2.What is the purpose of a flowchart?
What is the purpose of a flowchart?
to write computer code
to replace algorithms
to create data structures
Q3.Is it always necessary to create a flowchart before writing a computer program?
Is it always necessary to create a flowchart before writing a computer program?
Yes, flowcharts must always be created before writing any program.
Yes, flowcharts replace the need for writing code.
No, flowcharts are only used for simple programs.
Q4.What is the main advantage of using flowcharts?
What is the main advantage of using flowcharts?
they replace algorithms completely
they are easier to code than programs
they are written in programming languages
Q5.What does standardising flowchart symbols achieve?
What does standardising flowchart symbols achieve?
It limits creativity in designing flowcharts.
It ensures flowcharts are written in code.
It makes flowcharts unnecessary.
Q6.What is used in flowcharts to connect symbols and show the flow of the process?
What is used in flowcharts to connect symbols and show the flow of the process?
