# Natural Math

## Puppies & Kittens and Queens Move

For this week, we’re going to look at two very different activities that show a surprising result when presented together. Puppies and Kittens was first presented by Paul Zeitz for the Math Teachers’ Circle Network, and Queen’s Move is more commonly known as Wythoff’s game. Share on facebook Facebook Share on twitter Twitter Puppies & kittens …

## Let’s Make A Deal with Monty!

Share on facebook Facebook Share on twitter Twitter A prize is hidden behind one of three doors.  You choose the door where you think the prize is hidden. But before the door is opened, one of the other 2 remaining doors is opened to reveal no prize.  You must now decide to keep your original …

## An Endless Story

Share on facebook Facebook Share on twitter Twitter Do stories repeat?  They most certainly do on a Möbius strip!  The Möbius strip, or Möbius band, is named after August Ferdinand Möbius, a 19th century German mathematician and astronomer who was a pioneer in the field of topology. (The strip was also discovered independently at around …

## Remainder Patches!

Share on facebook Facebook Share on twitter Twitter This fun activity, suggested for Grades 2 – 6,  has students visually discover why some division problems end up with remainders and some do not by filling paper “quilts” with paper “patches.”  Win the game with the most leftover “remainder patches”! Quilt Quilt Patches Materials (for each …

## Tricky Tactics with Tangrams!

Share on facebook Facebook Share on twitter Twitter For centuries, people have been fascinated by tangrams, a Chinese puzzle consisting of pictures made from seven specific geometric shapes known as “tans,” or “pieces of cleverness.” But even if you’re aren’t familiar with Tangrams, what are they and how do they relate to math? This week’s …

## How to Create Our Interlocking Tetrahedra Logo

Share on facebook Facebook Share on twitter Twitter A tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of 4 triangular faces, 6 straight edges, and 4 vertex corners (vertices). Our newsletter logo is made of 5 interlocking tetrahedra. Each is shown in a different color and is made from 6 strips of paper …

## The Gobbling Math Turkey Game

Facebook Twitter Here’s a game that’s sure to get you into a gobbly good mood for Thanksgiving while reinforcing your knowledge of the order of mathematical operations at the very same time!  All you need are the following items to get started:  One 6-sided die A one-minute timer (a watch or kitchen timer works well) …

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