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Scale Matters

Students explore a variety of experiences in the use of scale on a number line.

Teacher notes

  • Two activities are provided. In ëName the numberí students identify the number that corresponds to a highlighted point on the line. In ëSelect the spotí students identify where a given number goes on the number line. A ruler is available to assist students after their first attempt.
  • The learning objects assist student understanding of scales as diagrammatic representations reflecting the placement of unit lengths along a line; scales are additive and multiplicative, in that parts of scales can be separated and combined and scales can be discrete (whole numbers) or continuous (e.g. decimals, fractions).
  • The learning objects provide feedback to the student about accuracy of placement or identification of the number.

Learning objects

Scale matters picture.

Scale matters: ones
This learning object makes use of a scale of ones.

Scale matters picture.

Scale matters: tens
This learning object makes use of a scale of tens. .

Scale matters picture.

Scale matters: hundreds
This learning object makes use of a scale of hundreds. .

Scale matters picture.

Scale matters: simple units
This is an aggregated learning object combining Scale matters: ones, tens and hundreds.

Scale matters picture.

Scale matters: tenths
This learning object makes use of a tenths scale.

Scale matters picture.

Scale matters: hundredths
This learning object makes use of a hundredths scale.

Scale matters picture.

Scale matters: tens of thousands
This learning object makes use of a tens of thousands scale.

Scale matters picture.

Scale matters: negatives
This learning object makes use of negative numbers.

Scale matters picture.

Scale matters: range of numbers
This is an aggregated learning object combining four other learning objects: hundredths, tenths, tens of thousands and negatives.