If, Elif, Else, Readability

If, Elif, Else, Readability

Good practices for selection statements

Multiple Select

In this lesson I am going to learn to ... ?

• Use relational operators

• Use if ... elif ... else in code

• Identify readability features in code

Multiple Choice

This is an example of ... ?

• Selection

• Repetition

• Sequence

• Iteration

Open Ended

Remind yourself of the relational operator symbols for:

greater than / less than

greater than or eqial to / less than or equal to

is equal to / is not equal to

Multiple Choice

What is output for an input of 18?

• "You cannot drive"

• "You could drive a moped"

• "You could drive a car"

• No output

Fill in the Blanks

What is input for an output of "You could drive a moped"?

Fill in the Blanks

Type the missing line of code ...

Fill in the Blanks

A value that you don't want to be changed during program execution is called a

Multiple Choice

Programmers call the use of the 0.2 value here a ________ number.

• magic

• random

• unknown

• fixed

Multiple Select

Choose all the rules for how constant values should be identified ...

• written in UPPER CASE

• words separated by _

• meaningful/descriptive name

• preceded by keyword const

• name shorter than 10 characters

Open Ended

Create your own constant identifiers for:

the mathematical value of pi (3.14)

the VAT rate of 20%

the speed of light

Hubble's constant

Multiple Select

Choose all the ways in which you can make your code more readable ...

• Using descriptive identifiers

• Adding comments

• Use of whitespace

• Structuring your program code

• Making it as long as possible

Fill in the Blanks

Type the name of a constant value ...

Fill in the Blanks

Type the name of a string constant value ...

Fill in the Blanks

Type the name of a float constant value ...

Fill in the Blanks

Type a line number that uses a string method ...

Fill in the Blanks

Type a line number that uses a relational operator ...

Fill in the Blanks

Type a line number that uses an arithmetic operator ...

Fill in the Blanks

Type the name of a Python keyword ...

Fill in the Blanks

Type the name of a standard Python function (without the parentheses) ...

Multiple Select

In this lesson I have learned to ...

• Use relational operators

• Use if ... elif ... else in code

• Identify readability features in code

Open Ended

Thinking Hard

Prioritise the knowledge you have gained in this lesson from most to least important.

(press Shift+Enter to take a new line ...)

Poll

How much of this lesson have you understood?

• None of it

• Some of it

• Most of it

• All of it