9.2 CS Computational Think 2

Define ABSTRACTION

• Breaking a task into smaller tasks.

• Drawing a map to show how to reach a destination.

• Creating step by step instructions.

• Focusing on what is important and ignoring what is unnecessary.

Define PATTERN RECOGNITION.

• A sequence of instructions.

• Looking for similarities and trends.

• Breaking a task into smaller tasks.

• Focusing on what is important and ignoring what is unnecessary.

What is abstraction?

• A painting
• A programming language
• This means focusing on the important details and ignoring the irrelevant information
• Abstraction is the breaking down of a big problem into smaller parts.

Picking out the important bits of information from the problem, ignoring the specific details that don't matter.

• Decomposition
• Abstraction
• Programming
• Algorithmic Thinking

What does abstraction do?

• The process of removing something unnecessary

• Breaks something up to make it easier

• The process of ignoring something unnecessary

• Looking at a solution that repeats itself

Which of the following is not done by abstraction?

• Identifies essential details

• Disregards non-essential information

• Breaks the problem down into smaller tasks

Which of the following is not done by decomposition?

• Allows multiple people to work on the problem together

• Disregards non-essential information

• Breaks the problem down into smaller tasks

When drawing a dog, which of the following characteristics is non-essential?

• Dogs have 4 paws

• Dogs have fur

• Dogs have brown fur

When designing a building that must be accessible for wheelchairs, which of the following characteristics is non-essential?

• Number of doors

• Number of walls

• Number of wall paintings

Decomposition allows each task to become _______

• More manageable

• Easier

• Quicker