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Activities (for students)
Activities for Students: Becoming Mathematicians: Exploring an Unsolved Arithmetic Problem

Catherine M. Miller and Douglas Shaw 

May 2011, Volume 104, Issue 9, Page 696

The Collatz conjecture is an open mathematical question easily accessible to prealgebra students; the authors present some activities based on the conjecture to show students how mathematicians really work.

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Two activitiy sheets on Collatz Orbits (PDF)
Two activity sheets on Collatz Orbits (Word)

Algebraic Patterns
Activity Sheets
Algebraic Thinking / Pre-Algebra Concepts
Grades 9-12
Reasoning and Proof