Year 9 Algorithms unit

What is computational thinking?

• A) A random approach to solving problems.

• B) A systematic approach to solving problems.

• C) An artistic approach to solving problems.

• D) A physical approach to solving problems.

What does computational thinking involve?

• A) Ignoring the problem and hoping it goes away.

• B) Understanding a problem and developing possible solutions.

• C) Copying solutions from others.

• D) Avoiding the problem altogether.

What are the three characteristics of computational thinking ?

• Decomposition, Abstraction, Algorithmic thinking

• Decomposition, Memorization, Algorithmic thinking

• Abstraction, Memorization, Algorithmic thinking

• Decomposition, Abstraction, Memorization

What is decomposition in the context of problem-solving?

• The process of combining multiple problems into one large problem.

• The process of breaking problems down into smaller, more manageable parts.

• The process of ignoring smaller problems to focus on the main problem.

• The process of solving problems without any breakdown.

What can be done if the sub-problems are not "manageable" enough?

• They can be ignored.

• They can be combined into one large problem.

• They can be further decomposed.

• They can be left unsolved.

What is the benefit of decomposing a problem into sub-problems?

• It makes the problem more complex.

• It makes it easier to solve the overall problem.

• It makes the problem unsolvable.

• It makes the problem larger.

What is a structure diagram used for?

• To visualize a problem by showing the different levels of detail

• To create a list of tasks

• To write a detailed report

• To design a website

What does the structure diagram in the image illustrate?

• How to book tickets

• How each sub-problem relates to other parts of the structure

• How to travel from UK to Paris

• How to plan a vacation

What is abstraction?

• The process of adding unnecessary information and ignoring important details.

• The process of removing unnecessary information and focusing on the important details.

• The process of developing a detailed idea of what the problem is.

• The process of solving a problem without understanding it.

Which is these is an example of abstraction ?

• A detailed photograph of a city

• A map

• A 3D model of a building

• A video tour of a city