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STC Unit Descriptions
Balancing
and Weighing
ISBN 0-89278-978-6
Subject: Relationship between balance and weight
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Materials
included in the Balancing and Weighing unit kit. |
This unit introduces students to the relationship between balance
and weight. Experiences with a beam balance introduce students to the concept that amount
of weight, position of weight, and position of the fulcrum affect balance. Work with an
equal-arm balance challenges students to place objects in serial order on the basis of
weight and to appreciate that weighing is the process of balancing an object against a
certain number of standard objects. In the final lessons, students turn to a series of
problem-solving investigations with the equal-arm balance and cupfuls of four different
foods. These activities provide an opportunity to explore the relationship between weight,
density, and volume.
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