J277 2.1.1-2.1.2 Algorithms

What is a flowchart?

• A visual representation of an algorithm.

• A diagram that shows abstraction.

• A series of shapes.

What do we mean by COMPUTATIONAL THINKING?

• Understanding a complex problem and developing possible solutions.

• Breaking a task into smaller tasks.

• Selecting a computer to use.

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

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 DECOMPOSITION

• Breaking a task into smaller tasks.

• Looking for similarities and trends.

• A sequence of instructions.

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

Define ALGORITHM

• Breaking a task into smaller tasks.

• Looking for similarities and trends.

• A sequence of instructions.

• Deciding what computer to use.

Which flowchart shape is this?

• Decision

• Input / Output

• Process

• Terminator

Which flowchart shape is this?

• Decision

• Input / Output

• Process

• Terminator

Which flowchart shape is this?

• Decision

• Input / Output

• Process

• Terminator

Which flowchart shape is this?

• Decision

• Input / Output

• Process

• Terminator

Why do we use flowcharts?

• To represent and plan algorithms in a visual way

• To use different mathematical shapes

• The computer can read them

• It's more complicated