# Recreational math

Community Questions

# Doodling in Math and more

Recreational mathematics and inspirational videos by resident mathemusician Vi Hart
Community Questions
All content in “Doodling in Math and more”

## Spirals, Fibonacci and being a plant

You're feeling spirally today, and math class today is taking place in greenhouse #3...

## Doodling in math

Let's say you're me and you're in math class…

## Hexaflexagons

Since it's shaped like a hexagon and flex rhymes with hex, hexaflexagon it is!

When you want to make a circle, how is it done? Well you probably will start with the radius one.

## Singing (and noises)

The title says it all...

## Mobius strips

Playing mathematically with strips!

## Thanksgiving math

Mathed potatoes, Borromean onion rings, green bean matheroles and Turduckenen-duckenen (yes, you read that right)

## Infinity . . .

Understanding infinity (all different kinds!). Countable and uncountable infinities. Bigger and smaller infinities.

## Other cool stuff

Pythagoras, snakes, fractals, snowflakes...