Measuring length (age 6+)

MathematicsMeasurementAges 6–7

Measure the length of an object using same-size length units laid end to end with no gaps or overlaps

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Teaching Table

Set out your lesson

Measure with equal units touching end to end.

Activity

Can discuss the supplied example in an accessible mode; adapt directions without supplying the target answer.

Policy

Check the learner can follow the model with support before moving on. Source prerequisite ordering is not learner mastery; return to prerequisite work when needed.

Use identical paper strips, large equal blocks or the supplied symbolic strip; a real book or table is optional. Do not compare mixed-size paper clips. Open S first, G together, then T alone; put S and G away before T. Keys stay adult-only. No purchase or printing is required; an unavailable physical observation remains pending, not passed.

Materials are ready in each step. Use them on screen or print just the current step. Put teaching examples aside before the learner tries.

What this lesson covers and its limits

These are bounded opportunities, not learner attainment. Partial and blocked source requirements remain so.

partial: Measure the length of an object using same-size length units laid end to end with no gaps or overlaps
Real book/table measurement conditional; the supplied symbolic strip teaches placement but is not a measured household object.
partial: Measure a book by laying paper clips end to end and counting them
Real book/table measurement conditional; the supplied symbolic strip teaches placement but is not a measured household object.
partial: Understand that the length measurement is the number of units that span the object
Real book/table measurement conditional; the supplied symbolic strip teaches placement but is not a measured household object.
partial: Avoid gaps and overlaps when placing units
Real book/table measurement conditional; the supplied symbolic strip teaches placement but is not a measured household object.
partial: If {{name}} is measuring the length of a table using identical toy bricks, can they lay them end to end with no gaps — and tell you how many bricks long the table is?
Real book/table measurement conditional; the supplied symbolic strip teaches placement but is not a measured household object.

Real book/table measurement conditional; the supplied symbolic strip teaches placement but is not a measured household object.

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Measure with equal units touching end to end.

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Check understanding

Measure a book by laying paper clips end to end and counting them
Understand that the length measurement is the number of units that span the object
Avoid gaps and overlaps when placing units

“If your child is measuring the length of a table using identical toy bricks, can they lay them end to end with no gaps — and tell you how many bricks long the table is?”

Curriculum record

Type: Procedural
Subject: Mathematics
Domain: Measurement
Age range: Ages 6–7

Standards

ccss-math:1.MD.2