PLTW Activity 2.1.1

Choose the correct fundamental coding concept that the letter a represents in this example.

b

a

c

d

e

Loop

String

Variable

Integer

Operator

Examine the block code. The lines inside the loop are identified by...

• The color of the blocks

• What is connected to the loop block next to while.

• What is nested inside the loop block.

Examine the Python code. The lines inside the loop are identified by...

• ' '

• <=

• an indent

• =

Match the following

• example of natural language

• A way to work out the logic without worrying about the specifics of the program language.

• natural language

• Say hello world 3 times, count each time you say it to know when to stop.

• example of pseudocode

• The language that people use in daily conversation with each other.

• pseudocode

• Say hello world and increase the count by 1. Loop. When the count = 3, stop.

What was called a (a)   in MIT App Inventor is called a ​ (b)   in the interactive code editor. This is because the term ​ (c)   is slightly more descriptive for text-based languages.

• procedure
• function

A function "block" in Python begins with the keyword (a)   followed by the function name and parentheses. Inside the parentheses are special types of variables called ​ (b)   or ​ (c)   .

• def
• parameters
• arguments

True or False: The terms "procedure" and "function" are often used by coding professionals interchangeably because they are so closely related.

• True

• False

To practice a function definition, define a function named drive with no parameters.

True or False: Decrementing means to reduce in number by one.

• True

• False

There are 2 ways to create a comment in Python. Choose the correct answers. (Hint: there are 2 correct answers)

• Use a # followed by the comment text.

• Any text within parentheses is treated as a comment.

• Use a @ followed by the comment text.

• Any text within triple quotation marks is treated as a comment.