Abstraction, Decomposition and Algorithmic Thinking

What is Computational thinking?

• •– the use of computers to solve problems.
• representing 'real world' problems in a computer using variables and symbols and removing unnecessary elements from the problem
• •breaking down a large problem into smaller sub-problems.
• •identifying the steps involved in solving a problem.

What is Abstraction?

• •– the use of computers to solve problems.
• representing 'real world' problems in a computer using variables and symbols and removing unnecessary elements from the problem
• •breaking down a large problem into smaller sub-problems.
• •identifying the steps involved in solving a problem.

What is Decomposition?

• •– the use of computers to solve problems.
• representing 'real world' problems in a computer using variables and symbols and removing unnecessary elements from the problem
• •breaking down a large problem into smaller sub-problems.
• •identifying the steps involved in solving a problem.

What is Algorithmic Thinking?

• •– the use of computers to solve problems.
• representing 'real world' problems in a computer using variables and symbols and removing unnecessary elements from the problem
• •breaking down a large problem into smaller sub-problems.
• •identifying the steps involved in solving a problem.

Not a definition of Decomposition

• They can be created independent of the other problems. 
•  They can be tested independently.
• Then combined to produce the full problem.
• Using symbols, variables etc. to represent a ‘real world’ problem in a computer program...

What is abstraction?

• The process of filtering out unnecessary detail.
• The process of filtering out irrelevant characteristics
• The process of filtering out irrelevant characteristics and unnecessary detail.

Why do we need to think computationally?

• To help us program
• To help us solve complex problems more easily
• To help us to think like a computer

Which of the following is NOT a computational thinking technique?

• Decomposition
• Abstraction
• Coding

Breaking a complex problem down into smaller problems and solving each one individually.

• Decomposition
• Abstraction
• Programming
• Algorithmic Thinking

Which of the following is an example of thinking computationally?

• Planning out your route when going to meet a friend
• When going to meet a friend, wandering around until you find them
• When going to meet a friend, asking a parent to plan your route for you