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Seeking Inventive Ways to Capture Change and Growth (page 4)

By G.A. Davis|J.D. Keller
Pearson Allyn Bacon Prentice Hall

Children can use a variety of familiar, nonstandard materials such as blocks or counters, crayons or markers, stickers or ink stampers to keep track of growth or to capture how big something is. It is the process of measuring with nonstandard tools that lays the foundation for using standardized units of measure to capture the “how much-ness” of things. As they become more experienced with using manipulatives for nonstandard measuring, they will begin to see the importance of lining up the units end to end and of becoming more precise in their measuring.

A similar measurement process can be constructed by using stickers or ink-pad images to capture the height of the growth, thus generating a visual, iconic display of growth. As with manipulative nonstandard units of measurement, using stickers and water-soluble ink-pad stampers also allows the children to count actual units, that is, the stickers or stamped images, to tell how many stickers or stamped images tall the plant is. Attaching numbers to this type of process helps children to understand, at a rational and logical level, that the markings on standardized rulers refer to how many units of length something is rather than just focusing on the end points or lines on the ruler.

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