Post-Office Numbers by Illuminations
Mathematics (NYS P-12 Common Core)
Elementary, 3rd Grade, 4th Grade, 5th Grade
A post office is a good example of a real-world environment in which numbers of different types can be found. Whole numbers and fractions are introduced. Numbers that occur in a greater variety of measurement situations can also be introduced. At this level, students should be encouraged to elaborate on the way numbers are used.
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