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The Number Line Question block creates interactive activities where learners place a marker on a number line to identify a specific value. It supports whole numbers, fractions, and decimals.
Number Line Questions support both slider-based (drag the marker) and typed answer modes.

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When to use Number Line Questions

Number Line Questions work well for:
  • Identifying positions of whole numbers, fractions, or decimals
  • Rounding to the nearest ten, hundred, or other value
  • Estimating positions between labeled tick marks
  • Reading values from partially labeled number lines
  • Practicing fraction and decimal placement

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Settings

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Number line settings

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Minimum value
input
default:"0"
The starting value of the number line.
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Maximum value
input
default:"10"
The ending value of the number line.
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Tick interval
input
default:"1"
The spacing between tick marks on the number line.
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Major ticks
input
default:"0, 5, 10"
Specific values that display with longer, more prominent tick marks.
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Show minor ticks
switch
default:"true"
When enabled, displays smaller tick marks between major ticks.
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Labels
select
default:"All ticks"
Which tick marks show numeric labels:
  • All ticks: Labels on every tick mark
  • Major only: Labels only on major tick marks
  • No labels: No numeric labels shown
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Label format
select
default:"Decimals"
How values are displayed on the number line:
  • Decimals: Shows values as decimal numbers
  • Fractions: Shows values as fractions

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Display settings

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Orientation
select
default:"Horizontal"
The orientation of the number line:
  • Horizontal: Left to right layout
  • Vertical: Bottom to top layout
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Show endpoint arrows
switch
default:"true"
When enabled, displays arrows at both ends of the number line.
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Width
slider
default:"600"
The width of the number line in pixels (80 to 1200).
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Height
slider
default:"120"
The height of the number line in pixels (80 to 500).

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Answer and marking

Set the correct answer by specifying the target value on the number line. You can choose between:
  • Slider: Learners drag a marker to the correct position
  • Typed: Learners type their answer
Marking can be exact (the answer must match precisely) or tolerance-based (answers within a range are accepted). Tolerance can be set to half a step or a custom value.

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Response settings

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Response requirement
select
default:"Correct"
Determines when the question is considered complete:
  • Correct: The learner must answer correctly to proceed.
  • Answered: Any response is accepted; correctness isn’t required.
  • Optional: The learner can skip the question entirely.
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Max responses
slider
default:"0"
The number of attempts the learner can make before the question is locked (0–3). Set to 0 for unlimited attempts.
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XP points
slider
default:"5"
The experience points awarded for answering the question correctly (0–10).

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Tips for teachers and parents

Best practices:
  • Use Major only labels to create more challenging activities where learners must count between labeled values
  • Set the label format to Fractions when teaching fraction placement
  • Start with whole numbers and familiar ranges before moving to decimals and fractions
  • Use tolerance-based marking for estimation activities
  • Remove minor ticks to increase difficulty
  • Pair with a Number Line display block to model the concept first