Representing algorithms using flowcharts
Lesson details
Learning outcome
I can create and represent an algorithm in a flowchart.
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.
Teacher tip
Encourage learners to relate algorithms to everyday activities that they may already understand. Then gradually get them to apply their understanding to new problems.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Match the term to its definition.
breaking a problem into smaller parts
focusing on the important details
a set of step-by-step instructions
executes the logic of an algorithm
Q2.What is computational thinking?
Q3.What is the purpose of abstraction in computational thinking?
Q4.Which of these is not true about algorithms?
Q5.What is the system of rules that determines the flow of instructions in a process called?
Q6.How can algorithms be represented?
Assessment exit quiz
6 Questions
Q1.What is a flowchart?
Q2.What is the purpose of a flowchart?
Q3.Is it always necessary to create a flowchart before writing a computer program?
Q4.What is the main advantage of using flowcharts?
Q5.What does standardising flowchart symbols achieve?
Q6.What is used in flowcharts to connect symbols and show the flow of the process?
To help you plan your 10 computer science lesson on: Representing algorithms using flowcharts, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 10 computer science lesson on: Representing algorithms using flowcharts, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 4 computer science lessons from the Algorithms unit, dive into the full secondary computer science curriculum, or learn more about lesson planning.