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Place Value (Beyond Base 10)

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Summary

Place value is something we cover in elementary school. It seems simple, but I’d wager that very few adults really understand the topic. I sure didn’t until I worked with non-base-10 number systems in college. Your students can get a taste of this mind-boggling experience by imagining what it would be like if we didn’t have the number 9. What would each digit represent then?

  1. Students consider what a “numeral” is and just how many we actually use.
  2. We discuss our ten numerals and how the base 10, or decimal, system works. Then we introduce base 9, pondering what 8 + 1 would equal in a system without a symbol for 9.
  3. We dig further into Base 9, asking students to complete a worksheet transforming base 9 numbers into base 10.

Plus 1 more step, 4 student videos, and 4 printable worksheets.

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