“This was the best money I have ever spent on a teaching tool.” ~ a teacher in Wisconsin

Arizona Math Standard: 6.NS.B.2

Fluently divide multi-digit numbers using a standard algorithm.

Math Curiosity: Collatz Conjecture

Math Curiosity: Collatz Conjecture

The Collatz Conjecture: start with any number and get to 1 using just two rules. It seems to always work…