JSON Game Artifact Representations
Computational Thinking representations in educational game design
Written by Sai Gattupalli
In this article, I describe JSON variables in a digital game that middle-school children in India have developed using the WearableLearning educational technology. Early Research Scholar Program (ERSP) researchers and other educational researchers interested in studying student game design for computational thinking may find this valuable.
In August 2022, young learners from Jammikunta, India, from grades 6 & 7, named this game "hackers". This digital "artifact" is extracted as a JSON to perform DFS traverse through states, transitions and connections (finite-state machines). This enables educational researchers to identify unique learner cultural attributes, which can then be reused to create an engaging learning experience for learners from diverse cultural backgrounds.
First, what does this represent?
In my previous article, I explain why computational thinking is an essential skill for success in the modern world (Wing, 2006). In the education paradigm, game design is a popular way to teach 21st-century literacy skills such as computational thinking to learners of all ages. Using the WearableLearning educational game design platform, children program their games using a drag-drop NoCode interface. For educational research purposes, digital game representations are extracted as JSONs. This particular JSON is a game that middle school children in India created in August 2022. This file is a direct cultural manifestation of the learners' cultural pockets of knowledge, which shape their computational thinking and participatory learning experiences.
Here is a general breakdown of the different components in the JSON file (scroll to the bottom for full prettified JSON):
"gameId": "hackers",
"teamCount": 2,
"playersPerTeam": 3,
"username": { "REDACTED"
"usernameId": "REDACTED"
},
"visibility": true,
"stateIdCount": 11,
"transitionIdCount": 10,
"connectionIdCount": 11,
"dataLog": false,
"states": [
gameId: This is the name of the game, "hackers".
teamCount: Shows number of teams in the game, 2.
playersPerTeam: Shows number of players per team, 3.
visibility: A boolean value that indicates if this game is public or private to the user.
stateIdCount: Number of states in the game, 11.
transitionIdCount: This field specifies the number of transitions in the game, 10.
connectionIdCount: This is the number of connections in the game, 11.
dataLog: Another boolean, I think this specifies if the game data is being logged or not.
{
"stateType": "START_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_start",
"game": "hackers",
"stateType": "START_STATE",
"positionX": 0.0,
"positionY": 68.501,
"inputConnections": [
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_1"
],
"globalVariables": [
]
states: An array containing information about the different states in the game.
stateType: Looks like the type of state. "START_STATE" means that it is the starting state.
stateId: A unique identifier for the state.
positionX and positionY: Think of this as (x,y) coordinates on game editor canvas.
inputConnections: Array with many objects - not visible in this demonstration.
outputConnections: Array with many objects - not visible in this demonstration.
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_1",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 24.5073,
"positionY": 264.074,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_1"
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_2"
],
"description": "State",
"displayText": {
"Game Wide": "welcome to our game this is a game of hackers press any button to continune\n"
},
description: Specifies the description of the state.
displayText: This is a label that contains learner-defined text:
"welcome to our game this is a game of hackers press any button to continune\n" - indicating that it is a welcome message for the game players.
connections": [
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_1",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_start",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_1",
"backwardsLoop": false,
"transition": null
connectionId: A unique identifier for this connection.
connectionFrom: ID of the state that this connection starts from.
connectionTo: ID of the state that the connection goes to.
backwardsLoop: Boolean showing if this connection creates a backwards loop in the game. Here, it is false - meaning it does not loop back.
transition: This variable is null. No clue what that means 🤨.
"transitions": [
{
"transitionId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_1",
"game": "hackers",
"connection": "dc5d6e5c0ffd6d1cd249286ced098382_connection_2",
"activeTransitions": {
"Game Wide": "Button Press"
},
"singleButtonPresses": {
"Game Wide": {
"button1": true,
"button1Label": "Red Button",
"button2": true,
"button2Label": "Green Button",
"button3": true,
"button3Label": "Blue Button",
"button4": true,
"button4Label": "Black Button"
}
},
"sequenceButtonPresses": {
},
"keyboardInputs": {
},
"timerDurations": {
},
"randoms": {
},
"globalVariables": {
"Game Wide": {
"globalVariableId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_1_game_wide",
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_1",
"scope": "Game Wide",
"globalVariableInputModifiers": [
]
}
}
}
transitionId: A unique identifier for this transition.
connection: ID of the connection that this transition is associated with.
activeTransitions: Don't know what that means 🤨.
singleButtonPresses: This is an object, nested. Possibly represents what color needs to be pressed.
sequenceButtonPresses: This is a sequence-based press that triggers the action.
keyboardInputs: Indicates a keyboard input, which triggers this transition.
timerDurations: Indicates if this is a timed event, which will trigger this transition.
randoms: Randomly picks one transition mode. Need more clarity on how this works.
globalVariables: Indicates if any global variables are associated with this transition.
Many repetitive variables have been omitted.
Full JSON:
{
"gameId": "hackers",
"teamCount": 2,
"playersPerTeam": 3,
"username": { "REDACTED"
"usernameId": "REDACTED"
},
"visibility": true,
"stateIdCount": 11,
"transitionIdCount": 10,
"connectionIdCount": 11,
"dataLog": false,
"states": [
{
"stateType": "START_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_start",
"game": "hackers",
"stateType": "START_STATE",
"positionX": 0.0,
"positionY": 68.501,
"inputConnections": [
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_1"
],
"globalVariables": [
]
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_1",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 24.5073,
"positionY": 264.074,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_1"
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_2"
],
"description": "State",
"displayText": {
"Game Wide": "welcome to our game this is a game of hackers press any button to continune\n"
},
"pictureOutputs": {
"Game Wide": {
"url": "https://planetsportsandtrophies.com/wp-content/uploads/2022/01/JR34-TY177A-1-300x300.jpg",
"scale": 72
}
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_10",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 0.0,
"positionY": 627.502,
"inputConnections": [
],
"outputConnections": [
],
"description": "State",
"displayText": {
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_11",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 489.5,
"positionY": 867.029,
"inputConnections": [
],
"outputConnections": [
],
"description": "State",
"displayText": {
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_2",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 182.046,
"positionY": 83.4938,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_2",
"dc5d6e5c0ffd6d1cd249286ced098382_connection_7"
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_3",
"dc5d6e5c0ffd6d1cd249286ced098382_connection_4"
],
"description": "State",
"displayText": {
"Game Wide": "calculate 9+6=?"
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_3",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 229.001,
"positionY": 247.997,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_3"
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_5"
],
"description": "State",
"displayText": {
"Game Wide": "great job you go to next question press any button to continue"
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_4",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 544.525,
"positionY": 44.5562,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_4"
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_7"
],
"description": "State",
"displayText": {
"Game Wide": "oops wrong answer try again press any button"
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_5",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 86.4743,
"positionY": 515.594,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_5",
"dc5d6e5c0ffd6d1cd249286ced098382_connection_9"
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_6",
"dc5d6e5c0ffd6d1cd249286ced098382_connection_8"
],
"description": "State",
"displayText": {
"Game Wide": "19 + 13 =?"
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_6",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 60.0,
"positionY": 801.0,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_6"
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_10"
],
"description": "State",
"displayText": {
"Game Wide": "good job you go to next question press any button to continue"
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_7",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 458.499,
"positionY": 668.918,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_8"
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_9"
],
"description": "State",
"displayText": {
"Game Wide": "oops wrong answer try again press any button to continue"
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_8",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 316.495,
"positionY": 820.566,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_10"
],
"outputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_11"
],
"description": "State",
"displayText": {
"Game Wide": "999 + 99 -10 -8 =?"
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
},
{
"stateType": "OUTPUT_STATE",
"stateId": "dc5d6e5c0ffd6d1cd249286ced098382_state_9",
"game": "hackers",
"stateType": "OUTPUT_STATE",
"positionX": 755.398,
"positionY": 779.047,
"inputConnections": [
"dc5d6e5c0ffd6d1cd249286ced098382_connection_11"
],
"outputConnections": [
],
"description": "State",
"displayText": {
},
"pictureOutputs": {
},
"soundOutputs": {
},
"videoOutputs": {
},
"globalVariables": {
}
}
],
"connections": [
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_1",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_start",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_1",
"backwardsLoop": false,
"transition": null
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_10",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_6",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_8",
"backwardsLoop": false,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_9"
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_11",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_8",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_9",
"backwardsLoop": false,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_10"
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_2",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_1",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_2",
"backwardsLoop": false,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_1"
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_3",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_2",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_3",
"backwardsLoop": false,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_2"
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_4",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_2",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_4",
"backwardsLoop": false,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_3"
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_5",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_3",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_5",
"backwardsLoop": false,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_4"
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_6",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_5",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_6",
"backwardsLoop": false,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_5"
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_7",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_4",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_2",
"backwardsLoop": true,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_6"
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_8",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_5",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_7",
"backwardsLoop": false,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_7"
},
{
"connectionId": "dc5d6e5c0ffd6d1cd249286ced098382_connection_9",
"game": "hackers",
"connectionFrom": "dc5d6e5c0ffd6d1cd249286ced098382_state_7",
"connectionTo": "dc5d6e5c0ffd6d1cd249286ced098382_state_5",
"backwardsLoop": true,
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_8"
}
],
"transitions": [
{
"transitionId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_1",
"game": "hackers",
"connection": "dc5d6e5c0ffd6d1cd249286ced098382_connection_2",
"activeTransitions": {
"Game Wide": "Button Press"
},
"singleButtonPresses": {
"Game Wide": {
"button1": true,
"button1Label": "Red Button",
"button2": true,
"button2Label": "Green Button",
"button3": true,
"button3Label": "Blue Button",
"button4": true,
"button4Label": "Black Button"
}
},
"sequenceButtonPresses": {
},
"keyboardInputs": {
},
"timerDurations": {
},
"randoms": {
},
"globalVariables": {
"Game Wide": {
"globalVariableId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_1_game_wide",
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_1",
"scope": "Game Wide",
"globalVariableInputModifiers": [
]
}
}
},
{
"transitionId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_10",
"game": "hackers",
"connection": "dc5d6e5c0ffd6d1cd249286ced098382_connection_11",
"activeTransitions": {
"Game Wide": "Text Entry"
},
"singleButtonPresses": {
},
"sequenceButtonPresses": {
},
"keyboardInputs": {
"Game Wide": {
"keyboardInputId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_10_game_wide",
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_10",
"scope": "Game Wide",
"keyboardInputs": [
"1080"
]
}
},
"timerDurations": {
},
"randoms": {
},
"globalVariables": {
"Game Wide": {
"globalVariableId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_10_game_wide",
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_10",
"scope": "Game Wide",
"globalVariableInputModifiers": [
]
}
}
},
{
"transitionId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_2",
"game": "hackers",
"connection": "dc5d6e5c0ffd6d1cd249286ced098382_connection_3",
"activeTransitions": {
"Game Wide": "Text Entry"
},
"singleButtonPresses": {
},
"sequenceButtonPresses": {
},
"keyboardInputs": {
"Game Wide": {
"keyboardInputId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_2_game_wide",
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_2",
"scope": "Game Wide",
"keyboardInputs": [
"15"
]
}
},
"timerDurations": {
},
"randoms": {
},
"globalVariables": {
"Game Wide": {
"globalVariableId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_2_game_wide",
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_2",
"scope": "Game Wide",
"globalVariableInputModifiers": [
]
}
}
},
{
"transitionId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_3",
"game": "hackers",
"connection": "dc5d6e5c0ffd6d1cd249286ced098382_connection_4",
"activeTransitions": {
"Game Wide": "Text Entry"
},
"singleButtonPresses": {
},
"sequenceButtonPresses": {
},
"keyboardInputs": {
"Game Wide": {
"keyboardInputId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_3_game_wide",
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_3",
"scope": "Game Wide",
"keyboardInputs": [
""
]
}
},
"timerDurations": {
},
"randoms": {
},
"globalVariables": {
"Game Wide": {
"globalVariableId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_3_game_wide",
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_3",
"scope": "Game Wide",
"globalVariableInputModifiers": [
]
}
}
},
{
"transitionId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_4",
"game": "hackers",
"connection": "dc5d6e5c0ffd6d1cd249286ced098382_connection_5",
"activeTransitions": {
"Game Wide": "Button Press"
},
"singleButtonPresses": {
"Game Wide": {
"button1": true,
"button1Label": "Red Button",
"button2": true,
"button2Label": "Green Button",
"button3": true,
"button3Label": "Blue Button",
"button4": true,
"button4Label": "Black Button"
}
},
"sequenceButtonPresses": {
},
"keyboardInputs": {
},
"timerDurations": {
},
"randoms": {
},
"globalVariables": {
"Game Wide": {
"globalVariableId": "dc5d6e5c0ffd6d1cd249286ced098382_transition_4_game_wide",
"transition": "dc5d6e5c0ffd6d1cd249286ced098382_transition_4",
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"button2Label": "Green Button",
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"button3Label": "Blue Button",
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"button4Label": "Black Button"
}
},
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"button1Label": "Red Button",
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"button2Label": "Green Button",
"button3": true,
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}
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},
{
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"game": "hackers",
"connection": "dc5d6e5c0ffd6d1cd249286ced098382_connection_10",
"activeTransitions": {
"Game Wide": "Button Press"
},
"singleButtonPresses": {
"Game Wide": {
"button1": true,
"button1Label": "Red Button",
"button2": true,
"button2Label": "Green Button",
"button3": true,
"button3Label": "Blue Button",
"button4": true,
"button4Label": "Black Button"
}
},
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},
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},
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},
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},
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}
}
}
]
}
References
Wing, J. M. (2006). Computational thinking. Communications of the ACM, 49(3), 33-35.
