Infinite Chocolate Bar & Missing Square Puzzle

Dazzle your students with mathemagic tricks!

Included in this collection are two related puzzles made under a Public Domain license. The first is an infinite chocolate bar puzzle that made its rounds in viral media some time ago. The second is the Missing Square Puzzle where I first heard about it from math wizard Eddie Woo (video attached below for classroom demonstration).

I estimate that you would use these when discussing the following topics in a math classroom:

• Area of Rectangles, Triangles, and Parallelograms
• Trigonometry (sin, cos, and tan functions)
• Proofs and the use of Logical Reasoning
• Gradual changes add up to create significant differences
• Design using OpenSCAD of simple grid-based parts (Intermediate CS?)

I have not printed these files yet but will do so at my next available opportunity.  They're designed with standard print settings in mind (Nozzle 0.4mm, no supports, etc).  I've included my OpenSCAD file for the Missing Square Puzzle and may update with an OpenSCAD file for the Infinite Chocolate Bar.

Trick someone into learning math!