Number line plot (numberlineplot)

The number line plot Question is referenced by its Question type in the code, which is numberlineplot. This Question allows students to plot points on a line, or stack points above a line.

Read the authoring documentation for a description of what this Question does.
Read the developer reference documentation to see configuration options for this Question type.

Examples

{
    "response_id": 60030,
    "instant_feedback": true,
    "stacked_elements": 2,
    "line": {
        "max": 10,
        "min": -10,
        "right_arrow": true
    },
    "stimulus": "Insert 2 points at following positions: 4, -9",
    "ticks": {
        "distance": 3,
        "minor_ticks": 2,
        "show": true
    },
    "type": "numberlineplot",
    "ui_style": {
        "width": "370px"
    },
    "validation": {
        "scoring_type": "exactMatch",
        "valid_response": {
            "score": 1,
            "value": [
                {
                    "type": "point",
                    "point1": 4
                },
                {
                    "type": "point",
                    "point1": -9
                }
            ]
        }
    }
}

Attributes

is_math boolean

Set to true to have LaTeX or MathML contents to be rendered with mathjax.

Default: false
metadata object

Object containing additional information about the question.
metadata.distractor_rationale string

Used to display individual response feedback/rationale to the student.
metadata.rubric_reference string

A unique identifier for the rubric to be used with the question - defaults to course rubric if assigned in activity
metadata.sample_answer string

A sample answer to be displayed on the Learnosity Reports API. HTML is supported.
metadata.acknowledgements string

References for any text passages, documents, images etc. used in the question.
metadata.distractor_rationale_response_level array

Used for storing the distractor rationales that map to responses in the same order for use/rendering by the host environment.
stimulus string

The question stimulus. This can include text, tables, images, resources and LaTeX entered via the Math Editor.
stimulus_review string

HTML/Text content displayed only in review state rendered above the response area. Supports embedded Feature <span> tags. Will override stimulus in review state.
instructor_stimulus string

HTML/Text content displayed when showInstructorStimulus is set to true on the activity. Supports embedded Feature <span> tags.
type string

Type of question being asked, e.g. 'association'

Default: "numberlineplot"
ui_style object

Object used to control different aspects of the UI
ui_style.fontsize string

Controls the size of base font for this question. Options are among 'small', 'normal', 'large', 'xlarge' and 'xxlarge'.

Default: "normal"
ui_style.layout string

Allows author to decide between horizontal and vertical plotting.

Default: "horizontal"
ui_style.spacing stringUnits

Spacing between stacked responses with trailing px unit eg. "30px"

Default: "30px"
ui_style.number_line_margin string

Distance from the number line's extremes to the sides with trailing px unit eg. "5px"

Default: "5px"
ui_style.width stringUnits

Width of the drawn area with trailing px unit eg. "550px".

Default: "550px"
ui_style.height stringUnits

Height of the drawn area with trailing px unit eg. "500px".

Default: "500px"
ui_style.min_width stringUnits

Minimum width of the drawn area with trailing px unit eg. "550px". Width in vertical mode is being calculated automatically, but you can force width to take at least some amount of space. Note also that toolbox takes 55px.

Default: "550px"
feedback_attempts number

If instant_feedback is true, this field determines how many times the user can click on the 'Check Answer' button. 0 means unlimited.

Default: 0
instant_feedback boolean

Flag to determine whether to display a 'Check Answer' button to provide instant feedback to the user.

Default: false
validation object

In this section, configure the correct answer(s) for the question.
validation.allow_negative_scores boolean

Negative scores will be normalised to zero by default. Allowing negative scores, on the other hand, means that the score can drop below zero when penalties are applied.

Default: false
validation.penalty number

Value indicating the marks deducted for an incorrect response.

Default: 0
validation.min_score_if_attempted number

Positive value indicating the minimum score if a student attempted the question.

Default: 0
validation.scoring_type string

The way in which marks are distributed for the question. Possible options:
'exactMatch': Exact Match - All parts of the question must be answered correctly to receive a mark.
'partialMatchV2': Partial Match - Each correct response element will be scored individually, and the overall question score will be divided between responses.
'partialMatch': Partial Match per Response - Each correct response element will be awarded an individual score.

Default: "exactMatch"
validation.unscored boolean

When enabled, this option will remove all scoring from the question. This is useful for creating practice questions.

Default: false
validation.valid_response object

An object containing the valid response score and value.
validation.valid_response.score number

Score awarded for the correct response(s).

Default: 1
validation.valid_response.value array

An array containing objects defining the correct response for a given tool, e.g. response: { type: 'segment', point1: { x: 0, y: 0 }, point2: { x: 0, y: 0 } }
validation.valid_response.value[ ].type string

Type of the tool
validation.valid_response.value[ ].point1 string

Position of the first point (from left)
validation.valid_response.value[ ].point2 string

Position of the second point if necessary (from left)
validation.valid_response.value[ ][ ].type string

Type of the tool
validation.valid_response.value[ ][ ].point1 string

Position of the first point (from left)
validation.valid_response.value[ ][ ].point2 string

Position of the second point if necessary (from left)
validation.automarkable boolean

Defines whether the question will be marked automatically, or must be marked manually.

Default: true
validation.alt_responses array

Add an alternate response if there is more than one correct overall solution to a question.
validation.alt_responses[ ].score number

Score if the alternative response is correct.

Default: 1
validation.alt_responses[ ].value array

An array containing objects defining the correct response for a given tool, e.g. response: { type: 'segment', point1: { x: 0, y: 0 }, point2: { x: 0, y: 0 } }
validation.alt_responses[ ].value[ ].type string

Type of the tool
validation.alt_responses[ ].value[ ].point1 string

Position of the first point (from left)
validation.alt_responses[ ].value[ ].point2 string

Position of the second point if necessary (from left)
validation.alt_responses[ ].value[ ][ ].type string

Type of the tool
validation.alt_responses[ ].value[ ][ ].point1 string

Position of the first point (from left)
validation.alt_responses[ ].value[ ][ ].point2 string

Position of the second point if necessary (from left)
validation.alt_responses[ ][ ].score number

Score if the alternative response is correct.

Default: 1
validation.alt_responses[ ][ ].value array

An array containing objects defining the correct response for a given tool, e.g. response: { type: 'segment', point1: { x: 0, y: 0 }, point2: { x: 0, y: 0 } }
validation.alt_responses[ ][ ].value[ ].type string

Type of the tool
validation.alt_responses[ ][ ].value[ ].point1 string

Position of the first point (from left)
validation.alt_responses[ ][ ].value[ ].point2 string

Position of the second point if necessary (from left)
validation.alt_responses[ ][ ].value[ ][ ].type string

Type of the tool
validation.alt_responses[ ][ ].value[ ][ ].point1 string

Position of the first point (from left)
validation.alt_responses[ ][ ].value[ ][ ].point2 string

Position of the second point if necessary (from left)
title string

Response area title
line object
line.min number

Minimum value for the number line

Default: -10
line.left_arrow boolean

Draw an arrow on the left hand side of the line

Default: false
line.max number

Maximum value for the number line

Default: 10
line.right_arrow boolean

Draw an arrow on the right hand side of the line

Default: false
ticks object
ticks.distance string/number

The distance between ticks on the number line

Default: 1
ticks.minor_ticks number

Number of minor ticks between major ticks

Default: 3
ticks.base string

Value on the line, where rendering of ticks should start

Default: "min-value-based"
ticks.show boolean

Whether to draw ticks on the line or not

Default: false
ticks.show_min boolean

Whether to draw min tick on the line or not

Default: false
ticks.show_max boolean

Whether to draw max tick on the line or not

Default: false
labels object
labels.show boolean

Whether to show labels on the line or not (only when tick is shown)

Default: true
labels.show_min boolean

Whether to show min label on the line or not (only when tick is shown)

Default: true
labels.show_max boolean

Whether to show max label on the line or not (only when tick is shown)

Default: true
stacked boolean

Whether responses should be stacked, or plotted on the line

Default: true
stacked_elements number

Number of elements/responses user can add to the number line

Default: 1
toolbar array

Allows you to choose toolbar buttons. By default all are available
points string

Specific point at which labels need to be drawn. Separate values by commas, eg: -2.5, 2.5

Response format

The data returned in the response format for this Question is the points that the student plotted on a line, or points that were stacked above a line.

Response format examples

{
    "value": [
        {
            "type": "point",
            "point1": -6
        }
    ],
    "type": "array",
    "apiVersion": "v2.173.0",
    "revision": 1,
    "feedbackAttemptsCount": 1
}

Response attributes

value array

The the points that the student plotted on a line, or points that were stacked above a line.
type string

Informs the scoring engine about what kind of data to expect in the values entered by the student. For this Question type, you must always supply a string for this attribute with the value "array".
apiVersion string

The version of the Questions API that returned this response.
revision numeric

Keeps track of the number of Question attempt submissions, i.e. how many times the student answered the Question and submitted it.
feedbackAttemptsCount numeric

Keeps track of the number of feedback attempts.