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Algorithms & Flowcharts quiz games for KS3 Computing

12 live games for KS3 Computing, 173 questions. Free for teachers, up to 40 players.

Algorithms & Flowcharts for KS3 Computing: 12 ready-made live quiz games, 173 questions in all.

The questions cover Bubble sort, Following a flowchart, Flowcharts with loops, Binary search, Algorithm Basics and Flowchart Symbols.

There are 6 practice sets, 4 picture rounds and 2 quickfire rounds. Question types: 120 multiple choice, 47 true or false and 6 fill the gap. 84 questions have a picture.

Pick a set, put the join code on the board and pupils play on their phones. Pupils need no account. Free for teachers, up to 40 players.

The gamesEach set is a fixed list of questions. Open a preview to see a few of them.

Quickfire: Algorithms & Flowcharts

KS315 questions· Warm-up

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

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Preview 3 sample questions
  1. 1

    Loops: true or false?

    Loops are also known as iteration.
  2. 2

    Flowchart symbols: true or false?

    A parallelogram represents input or output.
  3. 3

    Flowchart symbols: true or false?

    An oval represents a process/action step.

+ 12 more questions in the game.

Practice

Algorithms & Flowcharts: Tracing Algorithms

KS315 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

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Preview 3 sample questions
  1. 1

    Tracing algorithms: true or false?

    Tracing an algorithm always changes what the algorithm actually does.
  2. 2

    The three programming constructs: true or false?

    Iteration means running a set of instructions exactly once.
  3. 3

    Trace this algorithm: x = 5 y = 3 PRINT x + y What is printed?

    538215

+ 12 more questions in the game.

Practice

Algorithms & Flowcharts: Algorithm Basics

KS315 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

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Preview 3 sample questions
  1. 1

    Algorithms: true or false?

    An algorithm can be represented as a flowchart, pseudocode, or written instructions.
  2. 2

    Algorithms: true or false?

    A recipe for baking a cake is an example of an algorithm.
  3. 3

    Flowchart symbols: true or false?

    A diamond shape in a flowchart represents a decision point.

+ 12 more questions in the game.

Quickfire: Flowcharts

KS315 questions· Warm-up· all pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1

    Which symbol shows a process?

    A flowchart symbolA flowchart symbolA flowchart symbolA flowchart symbol
  2. 2
    A flowchart symbol with no text in it

    Picture: Forge Class Software Ltd

    True or false?

    This symbol shows a process.
  3. 3

    Which symbol shows a decision?

    A flowchart symbolA flowchart symbolA flowchart symbolA flowchart symbol

+ 12 more questions in the game.

Picture round: Flowcharts with loops

KS315 questions· Core· all pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1
    A flowchart with an input, a decision and an output

    Picture: Forge Class Software Ltd

    True or false?

    When the input is 18, this flowchart outputs 18.
  2. 2
    A flowchart with an input, a decision and an output

    Picture: Forge Class Software Ltd

    True or false?

    When the input is 21, this flowchart outputs 2.
  3. 3
    A flowchart with an input, a decision and an output

    Picture: Forge Class Software Ltd

    True or false?

    When the input is 19, this flowchart outputs 19.

+ 12 more questions in the game.

Picture round: Following a flowchart

KS315 questions· Core· all pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1
    A flowchart with an input, a decision and an output

    Picture: Forge Class Software Ltd

    True or false?

    When the input is 20, this flowchart outputs 16.
  2. 2
    A flowchart with an input, a decision and an output

    Picture: Forge Class Software Ltd

    True or false?

    When the input is 25, this flowchart outputs 26.
  3. 3
    A flowchart with an input, a decision and an output

    Picture: Forge Class Software Ltd

    True or false?

    When the input is 21, this flowchart outputs 63.

+ 12 more questions in the game.

Picture round: Following a flowchart, set 2

KS315 questions· Core· all pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1
    A flowchart with an input, a decision and an output

    Picture: Forge Class Software Ltd

    Follow this flowchart. What is output when the input is 21?

    47494821
  2. 2
    A flowchart with an input, a decision and an output

    Picture: Forge Class Software Ltd

    Follow this flowchart. What is output when the input is 4?

    109164
  3. 3
    A flowchart with an input, a decision and an output

    Picture: Forge Class Software Ltd

    Follow this flowchart. What is output when the input is 16?

    11016116160

+ 12 more questions in the game.

Practice

Algorithms & Flowcharts: Bubble sort

KS315 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

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Preview 3 sample questions
  1. 1

    Bubble sort, ascending: [8, 3, 22, 23, 12]. What is the list after pass 1?

    3, 8, 22, 23, 123, 8, 22, 12, 233, 8, 12, 22, 238, 3, 22, 23, 12
  2. 2

    Bubble sort, ascending: [24, 9, 21, 8, 5]. What is the list after pass 1?

    9, 8, 5, 21, 249, 21, 8, 5, 2424, 9, 21, 8, 55, 8, 9, 21, 24
  3. 3

    Bubble sort, ascending: [19, 6, 12, 7, 17]. What is the list after pass 1?

    6, 12, 7, 17, 196, 19, 12, 7, 176, 7, 12, 17, 1919, 6, 12, 7, 17

+ 12 more questions in the game.

Practice

Algorithms & Flowcharts: Bubble sort, set 2

KS315 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

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Preview 3 sample questions
  1. 1

    Bubble sort, ascending: [24, 27, 22, 4, 18, 10]. What is the list after pass 1?

    22, 4, 18, 10, 24, 2724, 27, 22, 4, 18, 104, 10, 18, 22, 24, 2724, 22, 4, 18, 10, 27
  2. 2

    Bubble sort, ascending: [18, 17, 10, 25, 16, 14]. What is the list after pass 1?

    10, 17, 16, 14, 18, 2517, 10, 18, 16, 14, 2518, 17, 10, 25, 16, 1410, 14, 16, 17, 18, 25
  3. 3

    Bubble sort, ascending: [11, 27, 28, 20, 29, 25]. What is the list after pass 1?

    11, 20, 25, 27, 28, 2911, 27, 20, 28, 25, 2911, 27, 28, 20, 29, 2511, 20, 27, 25, 28, 29

+ 12 more questions in the game.

Practice

Algorithms & Flowcharts: Bubble sort, set 3

KS313 questions· Core· 9 pictures

Plays in 13 of 17 game modes, including Gold Rush, Big Catch and Fossil Hunt.

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Preview 3 sample questions
  1. 1

    Bubble sort, ascending: [2, 5, 7, 3, 6]. Which chart shows the list after pass 1?

    A bar chart of five numbersA bar chart of five numbersA bar chart of five numbersA bar chart of five numbers
  2. 2

    Bubble sort, ascending: [5, 9, 4, 2, 1]. Which chart shows the list after pass 1?

    A bar chart of five numbersA bar chart of five numbersA bar chart of five numbersA bar chart of five numbers
  3. 3

    Bubble sort, ascending: [8, 4, 6, 7, 1]. Which chart shows the list after pass 1?

    A bar chart of five numbersA bar chart of five numbersA bar chart of five numbersA bar chart of five numbers

+ 10 more questions in the game.

How hosting works

  1. Pick a set and a game mode. The questions stay the same; the game changes.
  2. Put the join code on the board. Pupils join at subjecthub.co.uk/play on a phone or laptop. They need no account.
  3. Play for 1 to 7 minutes. You choose the length before you start.

Free for teachers: host these sets with up to 40 players. You sign up once as a teacher.

See how each game mode plays →

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