Algorithms, computational thinking and revision

What is an algorithm?

• A detailed step-by-step instruction set or formula for solving a problem or completing a task.

• A programming language used to implement software solutions.

• A type of computer hardware that processes data.

• A mathematical equation that represents the universe.

What does decomposition refer to in problem-solving?

• Breaking down a complex problem into smaller, more manageable parts.

• The process of eliminating unnecessary information from a problem.

• The act of solving a problem without any planning.

• Decomposing the chemicals involved in a problem.

Which of the following best describes abstraction in problem-solving?

• Removing unnecessary details to focus on the core problem.

• Adding more details to make a problem easier to understand.

• Breaking a problem into smaller parts.

• Using a computer to solve problems.

Pattern recognition in problem-solving helps in identifying:

• The smallest part of a problem.

• Similarities or patterns among different problems to find a common solution.

• The differences between various programming languages.

• The chemical composition of materials involved in a problem.

Which of the following is NOT a step in creating an algorithm?

• Testing the algorithm with different inputs.

• Writing code in a specific programming language.

• Defining the problem clearly.

• Planning the sequence of steps.

Decomposition helps in problem-solving by:

• Making it easier to focus on one aspect of the problem at a time.

• Increasing the complexity of the problem.

• Reducing the need for teamwork.

• Making problems more abstract.

In the context of abstraction, which detail is likely to be considered unnecessary when solving a mathematical problem?

• The formula needed to solve the problem.

• The color of the pen used to write the solution.

• The numbers given in the problem.

• The method used to solve similar problems.

Pattern recognition can be particularly useful in which scenario?

• When each problem you encounter is completely unique.

• When you encounter problems that have similar underlying structures.

• When you need to break down a problem into smaller parts.

• When you need to write a computer program.

Which of the following is an example of using decomposition in daily life?

• Solving a jigsaw puzzle by focusing on one section at a time.

• Reading a book from start to finish without taking breaks.

• Memorizing an entire dictionary.

• Running a marathon without training.

Abstraction is similar to:

• Zooming in on a photograph to see finer details.

• Zooming out on a photograph to see the bigger picture.

• Taking a photograph with a high-resolution camera.

• Editing a photograph to change its colors.