Programming with Karel

Which of the following commands is a valid Karel command?

• takeball();

• move;

• move();

• putBall()

Why do we use functions in Karel programs?

• Break down our program into smaller parts

• All of these are true

• Avoid repeating code

• Make our program more readable

What makes the following command an invalid Karel command? turnleft();

• It should end in a colon rather than a semicolon

• The l should be a capital L

• It should start with a capital T

• This command is correct

What is the proper format for a single line comment in Karel?

• This is a comment

• THIS IS A COMMENT

• //This is a comment

• /*This is a comment

Which of the following is not a valid condition to go in an if statement for Karel?

• ballsPresent()

• frontIsClear()

• leftIsBlocked()

• turnLeft()

How can we teach Karel new commands?

• While loop

• Define a new function

• The start function

• For loop

Say you want to write a program to have Karel put down 300 tennis balls. Which control structure would you use?

• If statement

• While loop

• For loop

• Nested while loop

Why does a programmer indent their code?

• Helps show the structure of the code.

• Easier for other people to understand.

• A key part of good programming style!

• All of the above

What is top down design?

• Top down design is a way of designing your program by starting with the biggest problem and breaking it down into smaller and smaller pieces that are easier to solve.

• Top down design is a way that you can create designs on a computer to put on a web page

• Top down design is a way of designing your programs starting with the individual commands first

• Top down design is a way to use loops and if statements to decompose the problem

What is the purpose of using a for loop in code?

• To do something if a condition is true

• To do something while a condition is true

• To repeat something a fixed number of times

• To make programs run faster