Cincy Math Teachers' Circle Fall 2012

When: Sat 15 September 9:00 - 12:00
Where: Madeira High School (If you get to the parking lot, you'll see signs for where we meet)

Session Chairs: Linda and Steve Pe
Topic/Title: Number machines

Abstract: Numbers, number bases, operations. We'll investigate an interesting setting that provides an intuitive context for discussing the representation of numbers in different bases and for an analysis of algorithms for performing operations (+,-,*,/) in these bases.

References, links
  1. A similar approach is presented in ... James Tanton's activity described here:
  2. Teacher's version of Exploding Dots (James Tanton)
  3. Student's version of Exploding Dots (James Tanton)
  4. And, if you want a concise summary of what we did in the context of the trick Steve Phelps shared, try this.