Scale Matters

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

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.

	Scale matters: ones This learning object makes use of a scale of ones.
	Scale matters: tens This learning object makes use of a scale of tens. .
	Scale matters: hundreds This learning object makes use of a scale of hundreds. .
	Scale matters: simple units This is an aggregated learning object combining Scale matters: ones, tens and hundreds.
	Scale matters: tenths This learning object makes use of a tenths scale.
	Scale matters: hundredths This learning object makes use of a hundredths scale.
	Scale matters: tens of thousands This learning object makes use of a tens of thousands scale.
	Scale matters: negatives This learning object makes use of negative numbers.
	Scale matters: range of numbers This is an aggregated learning object combining four other learning objects: hundredths, tenths, tens of thousands and negatives.

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