Code.org CSD Unit 3 Lesson 5

What is a Variable

• A placeholder for a piece of information that can change.

• An extra piece of information passed to a function to customize it for a specific need

• An algorithm that has been coded into something that can be run by a machine.

• Attributes that describe an object's characteristics

What is the variable for this label?

• size

• name

• location

• value

What command will create a new variable?

• var

• name

• loc

• size

Which of these are an assignment operator in this lesson?

• =

• +

• -

• x

What is the assigned VALUE in this picture?

• size

• =

• 100

• 50

According to slide 7, what is the variable assigned to the x value?

• size=100

• size=200

• x=100

• x=200

You will want to give a variable its first (or initial) value right away. You can initialize a variable in a single command by combining...

• var and = command

• variable and = command

• x and y commands

• size and control command

After you initialize a variable you don't need to use the var command to assign a new value.

• True

• False