For Loops and Range Function

For Loops and Range Function

Count-controlled Loops

Multiple Select

By the end of this lesson you should be able to ....

• use the range() function

• create for loops over a range of integers

• create while loops

• define functions

Multiple Choice

Why do we need to have loops anyway in a computer program?

• To avoid needless repetition of lines of code

• To make the code much cooler

• To show off your coding skills

• To put code into the correct order

Multiple Choice

range() is an example of a ___________ in Python

• data structure

• key word

• function

• variable

Multiple Choice

Which line of code would create the output shown?

• print(list(range(12)))

• print(list(range(11)))

• list(range(12))

• range(11)

Fill in the Blanks

Values that are provided as inputs to a function when it is called?

Multiple Choice

Which line of code would produce the output shown?

• print(list(range(2,22,2)))

• print(list(range(2,20)))

• print(list(range(0,22)))

• print(list(range(1,21,2)))

Multiple Choice

What type of loop is a 'for' loop?

• Conditional

• Count-controlled

• Infinite

• Nested

Multiple Choice

Identify the loop variable in this loop?

• i

• j

• k

• num

Fill in the Blanks

Word used to describe the action of using a for loop to repeat an action over every item in a list?

Multiple Choice

What will the output be from this loop?

• All the colours in list printed on the same line

• No output

• All the colours in list printed out, each on a new line

• Every letter in 'colours' printed on a new line

Multiple Choice

How do you think a 'for' loop is represented in a flow chart?

• Decision symbol with option to loop back

• Decision symbol with no loop back ooption

• It is not represented

• Multiple decisions one after another

Multiple Select

Two ways to use a for loop?

• To iterate over a specific range of integers

• To iterate over all the items in a data structure

• To iterate as long as a condition is True

• To iterate until a condition becomes False

Multiple Choice

The range function generates a series of ___________ from start to stop.

• integers

• numbers

• lists

• strings

Fill in the Blanks

It can include an optional parameter to specify the step size. If this is omitted the default step size is

Open Ended

Thinking Hard

What have you learnt today?

What can you do with this knowledge/skill/understanding?

What do you still need to know?

(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