Algorithms: Flowcharts and Pseudocode in IT Grade 10
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IT Grade 10
Flowchart and
pseudocode
Algorithms
Representing algorithms
2
Pseudocode
A detailed description of what a
computer program or algorithm
must do, expressed in natural
language rather than in a
programming language.
Flow chart
A flowchart is the graphical
representation of an algorithm
using different symbols, shapes
and arrows in order to
demonstrate a process or
program.
•
Limit
pseudocode
statements to one per line.
•
Use initial capitalization for all keywords.
•
Do not write source code. Write your thoughts of what the program
should do.
•
List all steps. ...
•
Don't be afraid to use programming structures (IF, THEN, ELSE etc.)
•
Use indentation to show subordination.
3
Pseudocode
Example
Flow chart algorithm
4
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Terminal Box –
Start/end
Instruction/
process
Input/ output
Decision
Connector
arrows
Flowcharts and pseudocode are essential tools in programming. A flowchart visually represents algorithms through symbols and shapes, while pseudocode provides a detailed description in natural language. Limiting pseudocode statements to one per line and using proper indentation helps organize program logic effectively. By understanding these concepts, students can express program steps clearly and implement algorithms efficiently.
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Presentation Transcript
IT Grade 10 Flowchart and pseudocode Algorithms
Representing algorithms Flow chart A flowchart is the graphical representation of an algorithm using different symbols, shapes and arrows in order to demonstrate a process or program. Pseudocode A detailed description of what a computer program or algorithm must do, expressed in natural language rather than in a programming language. 2
Pseudocode Limit pseudocode statements to one per line. Use initial capitalization for all keywords. Do not write source code. Write your thoughts of what the program should do. List all steps. ... Don't be afraid to use programming structures (IF, THEN, ELSE etc.) Use indentation to show subordination. Example 3
Flow chart algorithm A flowchart is the graphical representation of an algorithm using different symbols, shapes and arrows in order to demonstrate a process or program. Terminal Box Start/end Decision Instruction/ process Connector arrows Input/ output 4
