Y7 Introduction to Algorithms

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Computational thinking

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Computational thinking is a thought process involved in formulating a problem and expressing its solution in such a way that computers can effectively carry it out.

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Components of computational thinking

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Abstraction, Decomposition, Algorithm design

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Algorithm

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Algorithm is the step-by-step instructions followed to solve a problem.

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Procedure

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Procedure is a list of sequences that can be used several times in a program simply by calling it in the program. The complete list of sequences need not be inserted.

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Abstraction

Back

A component of computational thinking where certain non-essential characteristics of objects or systems are removed so that it is reduced to a simple set of characteristics.

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Types of conditional statement

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If... then ... statement & Case statement

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Iteration

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The repetition of a set of lines of codes is called iteration.

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Different types of loop statements

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For... to... next, Repeat... until & While... Do...

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Forms of algorithm representation

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Flowchart and pseudocode

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Definition of flowchart

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A method of representing algorithms in pictorial form, depicting the steps and order to be followed to perform a task.