Introduction

Figure 1

Arrows pointing different ways

Figure 2

Arrows pointing different ways

Figure 3

The four components of computational thinking
The four components of computational thinking

Figure 4

brain

Exercise

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Spotting a pattern
Spotting a pattern

Computational thinking in practice

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Computational thinking at work
The computational thinking process in action

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Structure diagram
Basic Structure Diagram

Computational thinking in programming

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counting words in a text
Counting words in a text

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Branching code
Branching code

Pseudocode

Figure 1

Pseudocode steps
Pseudocode steps

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How loops work
Loops in programming

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Steps in the loop
Steps in the copying loop

Figure 4

Loop as it would be written in the Unix shell
Coding a loop in the Unix shell

Potential solutions to practice exercises

Figure 1

Steps in the loop
Steps in the copying loop

Figure 2

Loop as it would be written in the Unix shell
Coding a loop in the Unix shell

Figure 3

Confirming a remove command{alt=“RM command in the shell”, width=“75%”}