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Main Curriculum Tie:
Background For Teachers:
In the United States, the use of the metric system was made legal but not mandatory by an Act of Congress in 1966. Since that time, all U.S. customary units of measurement (used with foreign nations and in scientific fields) have been based upon metric standards. Legislation that would have made the use of the metric system mandatory failed in Congress by very small margins during the first 30 years of this century.
Intended Learning Outcomes:
The teacher will discuss with the students the handouts:
The teacher will discuss with the students, 'Why do we need to know metrics?' She will summarize and note the advantages and disadvantages of the metric system for science. Note again that metrics is the unit of measurement in the physical and chemical sciences.
(Optional)--Give the students the conversion chart and a recipe, and have them convert the recipe to metrics.
Have the students perform METRIC MEASURING EXPERIMENT.
The teacher may choose to divide the class into two groups. One group will prepare the cookie dough using the metric measurements. The other group will prepare the dough using customary (English) measurements. However, all students should do the conversion exercise. Compare and evaluate the results.
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