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STC Unit Descriptions
Comparing
and Measuring
ISBN 0-89278-990-5
Subject: Concepts of measurement
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Materials
included in the Comparing and Measuring unit kit.
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Students explore the concepts that
underlie the science skills of comparing and measuring. The lessons
are based on a developmental sequence that includes three
activities: comparing, matching, and measuring. Initially, students
compare lengths by matching measuring tape to their own heights and
the lengths of their arms and legs. They make the transition from
matching to measuring length by quantifying nonstandard units of
measure (in this case, their own feet) and discover that using
nonstandard units of measure produces varied results. Finally,
students use standard units of measure, such as Unifix® cubes and
measuring strips, to measure height, width, and distance. In so
doing, students begin to understand key measuring concepts, such as
using beginning and ending points, a common starting line, and
standard units of measure.
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