2.1. Multiple Choice¶
It is also possible to embed simple questions into the text. These questions provide a way for the students to check themselves as they go along. The questions also provide feedback so that you can understand why an answer may or may not be correct.
Check your understanding
Python
-
Yes, Python is a great language to learn, whether you are a beginner or an experienced programmer. The correct answer is designated by using a plus sign before the answer.
Java
-
Java is a good object oriented language but it has some details that make it hard for the beginner.
C
-
C is an imperative programming language that has been around for a long time, but it is not the one that we use.
ML
-
No, ML is a functional programming language. You can use Python to write functional programs as well.
What programming language does this site help you to learn?
.. mchoice:: question1_1
What programming language does this site help you to learn?
- Python
+ Yes, Python is a great language to learn, whether you are a beginner or
an experienced programmer. The correct answer is designated by using
a plus sign before the answer.
- Java
- Java is a good object oriented language but it has some details that make
it hard for the beginner.
- C
- C is an imperative programming language that has been around for a long
time, but it is not the one that we use.
- ML
- No, ML is a functional programming language. You can use Python to write
functional programs as well.
You can also have code blocks in multiple-choice questions, or any other reST construct.
x is negative
-
This will only print if x has been set to a number less than zero. Has it?
x is zero
-
This will only print if x has been set to 0. Has it?
x is positive
-
The first condition is false and
xis not equal to zero so the else will execute.
What does the following code print when x has been set to 187?
if (x < 0)
{
System.out.println("x is negative");
}
else if (x == 0)
{
System.out.println("x is zero");
}
else
{
System.out.println("x is positive");
}
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.. mchoice:: qce_1
:practice: T
What does the following code print when ``x`` has been set to 187?
.. code-block:: java
if (x < 0)
{
System.out.println("x is negative");
}
else if (x == 0)
{
System.out.println("x is zero");
}
else
{
System.out.println("x is positive");
}
- x is negative
- This will only print if x has been set to a number less than zero. Has it?
- x is zero
- This will only print if x has been set to 0. Has it?
- x is positive
+ The first condition is false and ``x`` is not equal to zero so the else
will execute.
You can have multiple-choice questions with images in them. You can upload the images to a service like postimage so that they are on the web.
-
This code will draw a rectangle in the south west quadrant.
-
This code will draw a rectangle in the north east quadrant.
-
This code will draw a rectangle in the north west quadrant.
-
This code will draw a rectangle in the south east quadrant.
Which of the following code draws this picture?
.. mchoice:: over_turtle_which_draws_pict_mcq
Which of the following code draws this picture?
.. image:: https://i.postimg.cc/VNSyPdkL/rect.png
- .. image:: https://i.postimg.cc/05L2r1wN/codea.png
- This code will draw a rectangle in the south west quadrant.
- .. image:: https://i.postimg.cc/3xZKLyby/codeb.png
- This code will draw a rectangle in the north east quadrant.
- .. image:: https://i.postimg.cc/4xwg6DmV/codec.png
+ This code will draw a rectangle in the north west quadrant.
- .. image:: https://i.postimg.cc/QCLGNsyG/coded.png
- This code will draw a rectangle in the south east quadrant.
You can also have a multiple choice question with code for each answer.
class Person: def __init__(self, first, last): self.first = first self.last = last def __str__(self): return (first + " " + last) def initials(self): return (self.first[0] + self.last[0])
-
This code should use
self.firstandself.lastin the__str__method class Person: def __init__(self, first, last): self.first = first self.last = last def __str__(self): return (self.first + " " + self.last) def initials(self): return (self.first[0] + self.last[0])
-
This code is correct.
class Person: def __init__(self, first, last): self.first = first self.last = last def __str__(): return (first + " " + last) def initials(): return (self.first[0] + self.last[0])
-
This code is missing the
selfon the__str__andinitialsmethods None of them
-
One of them is correct
Which of the following code is correct?
.. mchoice:: over_class_mcq_correct_person_def_code_block
Which of the following code is correct?
- .. code-block::
class Person:
def __init__(self, first, last):
self.first = first
self.last = last
def __str__(self):
return (first + " " + last)
def initials(self):
return (self.first[0] + self.last[0])
- This code should use ``self.first`` and ``self.last`` in the ``__str__`` method
- .. code-block::
class Person:
def __init__(self, first, last):
self.first = first
self.last = last
def __str__(self):
return (self.first + " " + self.last)
def initials(self):
return (self.first[0] + self.last[0])
+ This code is correct.
- .. code-block::
class Person:
def __init__(self, first, last):
self.first = first
self.last = last
def __str__():
return (first + " " + last)
def initials():
return (self.first[0] + self.last[0])
- This code is missing the ``self`` on the ``__str__`` and ``initials`` methods
- None of them
- One of them is correct
This next type of question allows more than one correct answer to be required. Just mark each correct answer with a plus sign (+). The feedback will tell you whether you have the
correct number as well as the feedback for each.
red
-
Red is a definitely on of the colors.
yellow
-
Yes, yellow is correct.
black
-
Remember the acronym…ROY G BIV. B stands for blue.
green
-
Yes, green is one of the colors.
Which colors might be found in a rainbow? (Choose all that are correct)
.. mchoice:: question1_2
Which colors might be found in a rainbow? (Choose all that are correct)
- red
+ Red is a definitely on of the colors.
- yellow
+ Yes, yellow is correct.
- black
- Remember the acronym...ROY G BIV. B stands for blue.
- green
+ Yes, green is one of the colors.
The order in which multiple-choice answers are presented can be randomized by adding the :random: option.
<exercise label="multiple-choice-multiple-answers">
<title>Multiple-Choice, Not Randomized, Multiple Answers</title>
<idx>stop signs</idx>
<statement>
<p>Which colors might be found in a rainbow? (Note that the radio buttons now allow multiple buttons to be selected.)</p>
</statement>
<choices>
<choice correct="yes">
<statement>
<p>Red</p>
</statement>
<feedback>
<p>Red is a definitely one of the colors.</p>
</feedback>
</choice>
<choice correct="yes">
<statement>
<p>Yellow</p>
</statement>
<feedback>
<p>Yes, yellow is correct.</p>
</feedback>
</choice>
<choice>
<statement>
<p>Black</p>
</statement>
<feedback>
<p>Remember the acronym<ellipsis/><acro>ROY G BIV</acro>. <q>B</q> stands for blue.</p>
</feedback>
</choice>
<choice correct="yes">
<statement>
<p>Green</p>
</statement>
<feedback>
<p>Yes, green is one of the colors.</p>
</feedback>
</choice>
</choices>
<hint>
<p>Do you know the acronym<ellipsis/><acro>ROY G BIV</acro> for the colors of a rainbow, and their order?</p>
</hint>
</exercise>
0
-
Correct.
1
-
Correct.
2
-
Correct.
3
-
Incorrect.
4
-
Incorrect.
What numbers are less than 3?
.. mchoice:: mchoice_random
:random:
What numbers are less than 3?
- 0
+ Correct.
- 1
+ Correct.
- 2
+ Correct.
- 3
- Incorrect.
- 4
- Incorrect.