Introduction to Programming

What is Selection?

• Repeating a number of steps
• A decision point in a program
• The order in which instructions are carried out

In programming, how is selection implemented?

• IF-OTHERWISE
• IF-ELSE
• DO-ELSE
• DO-FOR

Why is selection important?

• Selection allows a number of steps to be repeated
• Selection allows multiple paths through a program
• Selection determines the order in which instructions are carried out

What three building blocks are used when designing algorithms? 

• Sequencing, Programming, Iteration
• Sequencing, Selection, Iteration
• Sequencing, Selection, Programming
• Programming, Selection, Iteration

Which of the following contains an INCORRECT sequence when getting dressed to go out?

• Put on socks, put on shoes, put on coat
• Put on coat, put on shoes, put on socks
• Put on socks, put on coat, put on shoes

What is sequencing?

• The order in which steps are carried out in an algorithm
• The order in which we think computationally
• The process of repeating a number of steps in an algorithm

What is Iteration?

• Repeating steps in an algorithm
• A decision in an algorithm
• An error in an algorithm

Why is iteration so important?

• It allows us to choose one of several paths through an algorithm
• It allows us to simplify an algorithm by removing unnecessary steps
• It allows more steps to be included in an algorithm

What is another name for iteration?

• Loop
• Sequence
• Selection
• Algorithm

What is meant by testing a condition?

• Checking to see if a condition has been met
• Checking which path to take through the solution
• Checking how many steps to repeat