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rosemm merged 2 commits into from
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hide quiz explanations when questions not answered yet #974

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hide quiz explanations when questions not answered yet
rosenfrantz Nov 14, 2025
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91 changes: 46 additions & 45 deletions python_basics_lists_dictionaries/python_basics_lists_dictionaries.md
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
module_id: python_basics_lists_dictionaries
author: Meredith Lee
email: [email protected]
version: 1.2.2
version: 1.2.3
current_version_description: Replaced SageMathCells with Pyodide cells for better usability.
module_type: standard
docs_version: 3.0.0
Expand Down Expand Up @@ -230,33 +230,34 @@ The code cells above are linked, meaning that all of the cells "remember" the co

1. Which of the following is FALSE about lists? Select all that apply.

[( )] Lists are changeable; items can be added, removed, or replaced after the list is created.
[( )] Lists can be assigned to variables.
[( )] Lists can contain a mix of data types.
[(X)] Lists are unordered; you cannot access an item in the list by its position.
***
<div class = "answer">

Lists are changeable, can be stored in variables for later use (even though we didn't explicitly discuss it, the list on the previous page was assigned to the variable `produce`), can contain a mix of data types, and they are **ordered**, meaning that items remain in the position that they were put into the list. You can access or edit list items by value **or** position (also called the **index**).
[( )] Lists are changeable; items can be added, removed, or replaced after the list is created.
[( )] Lists can be assigned to variables.
[( )] Lists can contain a mix of data types.
[(X)] Lists are unordered; you cannot access an item in the list by its position.
***
<div class = "answer">

</div>
***
Lists are changeable, can be stored in variables for later use (even though we didn't explicitly discuss it, the list on the previous page was assigned to the variable `produce`), can contain a mix of data types, and they are **ordered**, meaning that items remain in the position that they were put into the list. You can access or edit list items by value **or** position (also called the **index**).

</div>
***

2. Given the following list of numbers, what is the **index** of the number **15**?

`[2, 14, 9, 101, 15, 37]`

[( )] 5
[(X)] 4
[( )] 15
[( )] 6
***
<div class = "answer">
[( )] 5
[(X)] 4
[( )] 15
[( )] 6
***
<div class = "answer">

Indexing in Python begins with **0**, not 1, and so the index of 15, which is the fifth item in the list, is **4**.
Indexing in Python begins with **0**, not 1, and so the index of 15, which is the fifth item in the list, is **4**.

</div>
***
</div>
***

## Dictionaries

Expand Down Expand Up @@ -386,49 +387,49 @@ We've just gone through quite a few useful list and dictionary methods, and you

1. True or False: Duplicate key-value pairs are allowed in dictionaries.

[( )] True
[(X)] False
***
<div class = "answer">
[( )] True
[(X)] False
***
<div class = "answer">

While **values** can be repeated in a dictionary, each **key** must be unique. However, you can have multiple values for a key by putting those values in a list.
While **values** can be repeated in a dictionary, each **key** must be unique. However, you can have multiple values for a key by putting those values in a list.

</div>
***
</div>
***

2. How would you access all of the countries (the "keys") in the dictionary below?

`capital_cities = {"Afghanistan" : "Kabul", "Albania" : "Tirana", "Algeria" : "Algiers", "Andorra" : "Andorra la Vella"}`

[[capital_cities.keys()]]
<script>
let input = "@'input".trim();
input == "capital_cities.keys()";
[[capital_cities.keys()]]
<script>
let input = "@'input".trim();
input == "capital_cities.keys()";
</script>
***
<div class = "answer">
***
<div class = "answer">

To return the keys of a dictionary, you use the `.keys()` dictionary method on the `capital_cities` dictionary. So the correct answer is `capital_cities.keys()`.
To return the keys of a dictionary, you use the `.keys()` dictionary method on the `capital_cities` dictionary. So the correct answer is `capital_cities.keys()`.

</div>
***
</div>
***

3. How would you add the the country of Angola and its capital city of Luanda to the dictionary below?

`capital_cities = {"Afghanistan" : "Kabul", "Albania" : "Tirana", "Algeria" : "Algiers", "Andorra" : "Andorra la Vella"}`

[[capital_cities["Angola"] = "Luanda"]]
<script>
let input = "@'input".replace(/\s/g, "");
input == 'capital_cities["Angola"]="Luanda"' || input == "capital_cities['Angola']='Luanda'";
</script>
***
<div class = "answer">
[[capital_cities["Angola"] = "Luanda"]]
<script>
let input = "@'input".replace(/\s/g, "");
input == 'capital_cities["Angola"]="Luanda"' || input == "capital_cities['Angola']='Luanda'";
</script>
***
<div class = "answer">

To add a new key-value pair to a dictionary, we use subsetting notation.
To add a new key-value pair to a dictionary, we use subsetting notation.

</div>
***
</div>
***


## Additional Resources
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42 changes: 20 additions & 22 deletions python_basics_loops_conditionals/python_basics_loops_conditionals.md
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
module_id: python_basics_loops_conditionals
author: Meredith Lee
email: [email protected]
version: 1.2.2
version: 1.2.3
current_version_description: Replaced SageMathCells with Pyodide cells for better usability
module_type: standard
docs_version: 1.2.0
Expand Down Expand Up @@ -296,32 +296,30 @@ print(candy2)

1. If we wanted to add another conditional statement at line 6 of the code cell above that would give 1 piece of candy to children who start with between 10 to 15 pieces (inclusive), what keyword would we use to start that line?

[( )] `for`
[( )] `if`
[(X)] `elif`
[( )] `else`
***
<div class = "answer">

Because we're checking for multiple conditions, we use the `elif` keyword. We use `if` for the first condition that we are testing; `else` is used at the end to catch anything that hasn't been explicitly handled by our preceding conditions. And we know that `for` is the keyword to begin a loop!

</div>
***
[( )] `for`
[( )] `if`
[(X)] `elif`
[( )] `else`
***
<div class = "answer">

Because we're checking for multiple conditions, we use the `elif` keyword. We use `if` for the first condition that we are testing; `else` is used at the end to catch anything that hasn't been explicitly handled by our preceding conditions. And we know that `for` is the keyword to begin a loop!

2. How could you write the comparison at line 6 so that each child gets the correct number of pieces of candy? Select all that apply.
</div>
***
How could you write the comparison at line 6 so that each child gets the correct number of pieces of candy? Select all that apply.

[[X]] `10 <= i <= 15`
[[ ]] `10 < i < 15`
[[ ]] `i >= 10`
[[X]] `10 <= i < 16`
***
<div class = "answer">
[[X]] `10 <= i <= 15`
[[ ]] `10 < i < 15`
[[ ]] `i >= 10`
[[X]] `10 <= i < 16`
***
<div class = "answer">

Because we want to give an additional piece of candy to any student who started with between 10 and 15 pieces, we want to test if `i` is greater than or equal to 10, but less than or equal to 15 (which could also be expressed as less than 16, since we're working with integers). So the first and last choices are correct.
Because we want to give an additional piece of candy to any student who started with between 10 and 15 pieces, we want to test if `i` is greater than or equal to 10, but less than or equal to 15 (which could also be expressed as less than 16, since we're working with integers). So the first and last choices are correct.

</div>
***
</div>
***

## Additional Resources

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18 changes: 9 additions & 9 deletions ...basics_variables_functions_methods/python_basics_variables_functions_methods.md
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Expand Up @@ -2,7 +2,7 @@
module_id: python_basics_variables_functions_methods
author: Meredith Lee
email: [email protected]
version: 1.1.3
version: 1.1.4
current_version_description: Implemented code blocks in pyodide; make liascript link(s) point to first page
module_type: standard
docs_version: 1.2.0
Expand Down Expand Up @@ -173,10 +173,10 @@ Notice that in the above example, we have passed the `type("Hello World!")` func

1. Which of the following are valid examples of Python code? Select all that apply.

[[X]] `len("Python is awesome!")`
[[X]] `"python".upper()`
[[X]] `type("4.3")`
[[X]] `type(True)`
[[X]] `len("Python is awesome!")`
[[X]] `"python".upper()`
[[X]] `type("4.3")`
[[X]] `type(True)`
***
<div class = "answer">

Expand All @@ -199,10 +199,10 @@ print(x)

2. To check that the string "Python is awesome!" ends in an exclamation point, we can use the code ` "Python is awesome!".endswith("!")`. In this case, the boolean value `True` will be returned, since "Python is awesome!" does indeed end in an exclamation point. What is `.endswith()` an example of?

[(X)] A method
[( )] A function
[( )] A string
[( )] A float
[(X)] A method
[( )] A function
[( )] A string
[( )] A float
***
<div class = "answer">

Expand Down