Intro to Algorithms

Developing a step-by-step solution to the problem, or the rules to follow to solve the problem.

• decomposition

• pattern recognition

• abstraction

• algorithms

Why do we think computationally?

• to help us program
• to help us solve complex problems more easily
• to help us to think like a computer
• to help us plan our actions

Which of the following is an example of thinking computationally?
When going to meet a friend...

• planning your route
• wandering around until you find them
• asking a parent to plan for you
• giving up and doing something else

What is a complex problem?
A problem that, at first, is...

• not easy to solve
• is not easy to understand
• is not easy to understand or solve
• cannot be solved

What is Scratch?

• A Programming Language

• A Code

• An Animation

• A Computer System

What is a sequence

• Putting and executing instructions in order.

• A pattern of numbers.

• Instructions which a computer follows.

• A line of code

Which is the easiest set of instructions to follow?

• Draw a house.

• Draw a house with 4 windows, a door, chimney and a path.

• Draw a house with windows and a drive.

• Draw a square, with 4 squares inside.

Which algorithm, will NOT take you from A to B

• UP 1

  RIGHT 5

  UP 2

• RIGHT 1

  UP 3

  RIGHT 4

• UP 2

  RIGHT 5

  UP 1

• LEFT 1

  UP 3

  RIGHT 5

A binary system is a way of representing data with...

• bicycles
• lots of numbers
• only 2 options
• in black and white

Which of these is NOT an example of binary?

• on or off
• true or false
• yes or no
• head, shoulders, knees, or toes