Experience concept · Maths
Decimal Detective
More digits. A bigger number? Test the claim.
The learner experience
A little curiosity. A lasting understanding.
Predict whether 0.35 or 0.4 is greater, inspect a zoomable number line, explain the comparison, then place packages in increasing order in a sorting game. Reassess with unfamiliar pairs.
Imagine this moment
The number line expands to show 0.4 and 0.40 at precisely the same point.
Learning & evidence
The learning objective
Compare decimal values using place value rather than digit count.
What understanding looks like
Before-and-after comparison explanations and new comparisons without the visual aid.
Adaptation
Different starting points. A shared objective.
Begin with tenths and hundredths; extend to thousandths, equivalent notation, and boundary values.
Educator review
This is a proposed experience. Content and assessment require teacher review before classroom use.
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