Preview

The whole resource, exactly as a class sees it. Answers and marking are held back.

Game night shortlist

Loop through a list of game suggestions. Use if to skip the game your group played last time.

Visit every item

range(3) repeats three times. A loop over games repeats once per item.

games = ["Trivia", "Word Hunt"]
for game in games:
    print(game)

games is the whole list. game is the loop variable. It holds the current item.

Task 1. Show every suggestion

Fill three gaps. Run, then Check my answer.

Expected output

Kart Race
Trivia
Word Hunt

Fill in the code3 marks

games = ["Kart Race", "Trivia", "Word Hunt"]
Gap 1 game in Gap 2:
    print(Gap 3)

range
game
for
if
games
len

Check each item

= stores a value. == checks for equality.

A condition is true or false. Selection uses if to run code when the condition is true.

games = ["Kart Race", "Trivia", "Word Hunt"]
for game in games:
    if game == "Trivia":
        print(game)

Use four spaces to indent if and eight for print.

Current item	Condition	What prints?
Kart Race	False	Nothing
Trivia	True	Trivia
Word Hunt	False	Nothing

Task 2. Predict the output

games = ["Trivia", "Dance Battle", "Trivia"]
for game in games:
    if game == "Trivia":
        print(game)

Multiple choice1 mark

What does the code print?

ATrivia once
BAll three titles
CTrivia twice
DDance Battle once

Task 3. Print only Dance Battle

Fill three gaps, then Run. Look for Dance Battle on two lines.

Fill in the code3 marks

games = ["Dance Battle", "Trivia", "Dance Battle"]
for game in games:
    if game Gap 1 Gap 2:
        print(Gap 3)

!=
"Trivia"
games
==
game
"Dance Battle"

Task 4. Fix the match

Fix the comparison and print() to show each game that matches wanted.

Run. Expect Trivia on two lines. Select Check my answer.

Coding task2 marks

games = ["Kart Race", "Trivia", "Word Hunt", "Trivia"]
wanted = "Trivia"

for game in games:
    if games == wanted:
        print(games)

Filter the list

Filter means keep items that pass a check. != means does not equal.

games = ["Trivia", "Word Hunt"]
shortlist = []
for game in games:
    if game != "Trivia":
        shortlist.append(game)
print(shortlist)

append() adds one item to the end. The output is ['Word Hunt'].

Task 5. Skip Kart Race

Fill three gaps. Run and look for ['Trivia', 'Word Hunt'].

Fill in the code3 marks

games = ["Kart Race", "Trivia", "Kart Race", "Word Hunt"]
shortlist = []

for game in games:
    if game Gap 1 "Kart Race":
        shortlist.Gap 2(Gap 3)

print(shortlist)

remove
game
==
games
!=
append

Task 6. Explain where the lines go

Use Task 5.

A. What happens to earlier items if shortlist = [] runs at the start of every repeat?

B. What happens to Kart Race if append() runs on every repeat?

Written answer2 marks

Answer A and B in short sentences.

Students type their answer here.

Task 7. Plan two tests

Two people can suggest the same game.

games = ["Kart Race", "Trivia", "Dance Battle", "Kart Race", "Word Hunt"]

Test	Game to skip
A	A title in the list. Copy it exactly.
B	A title missing from the list.

Written answer2 marks

For A and B, give the game to skip and how many suggestions should remain.

Students type their answer here.

Task 8. Build the game night shortlist

Keep the supplied games list unchanged.

Before the loop, use input() to save a title to skip. Create shortlist = [].
Loop through games with for. Use if and != to append each item that differs from the reply.
After the loop, print two lines. Print the shortlist first, then its length.

Run both tests from Task 7. Select Check my answer.

Syntax reminder

skip = input("Game to skip? ") saves the reply. len(shortlist) counts the items.

Coding task7 marks

games = ["Kart Race", "Trivia", "Dance Battle", "Kart Race", "Word Hunt"]

# Ask which game to skip. Create the empty shortlist.

# Loop through the suggestions and add the games to keep.

# Print the shortlist and its length.

Task 9. Save a reminder

Copy your Task 5 code. Label the current item, condition and line after the loop.