9.1 AlgDesign.comp_thinking_skills

Question 1

What are the main techniques in computational thinking?

Answer 1

• Abstraction
• Decomposition
• Algorithms
• Pattern recognition

Question 2

What is abstraction in computational thinking?

Answer 2

A process of extracting essential information and ignoring irrelevant details to create simplified models suited to solving specific problems.

Question 3

Name three everyday items that utilise abstraction.

Answer 3

• Maps
• Calendars
• Timetables

Question 4

List three benefits of abstraction in program development.

Answer 4

• Reduces the time required for development, enabling quicker delivery to customers.
• Results in smaller programs that occupy less memory and have faster download times.
• Enhances customer satisfaction by focusing on their specific requirements without unnecessary features.

Question 5

What is the first stage of abstraction?

Answer 5

Identifying the purpose of the model for the situation to be built.

Question 6

What is decomposition in computational thinking?

Answer 6

Breaking a complex problem into smaller, manageable parts, further subdivided until solutions for each part can be developed.

Question 7

Why is decomposition important?

Answer 7

It helps uncover the complexity within seemingly simple problems, making them easier to examine and solve.

Question 8

What is pattern recognition in computational thinking?

Answer 8

Identifying similarities among parts of a problem to reuse solutions, leading to the development of reusable code in subroutines, procedures, and functions.

Question 9

How does pattern recognition save time in programming?

Answer 9

• By reusing tested program modules or writing new reusable procedures and functions.
• Reducing the need for redundant development efforts.

Question 10

How are program modules written in a structured approach?

Answer 10

Each part is defined as a separate module, written and tested as a distinct procedure or function.