# Holiday Math

## Squares/Square Root day

• Are the last two digits of the year a perfect square like 2016? Celebrate 4/4/16 it's the time to celebrate squares or square roots! This day doesn't occur every year but be on the lookout!

## Women in Math Celebration

• This celebration isn’t set on a fixed date, but usually takes place sometime in the spring in middle and high schools. It is meant to encourage young women to pursue a career in a math or science field. Inspired by Sonia Kovalevsky, an important Russian mathematician and born on January 15,1850. it is a great time to celebrate Women in Math/Science. Other great women in math can be found at: http://www.agnesscott.edu/lriddle/women/alpha.htm

## Odd Day

• Odd day is a day that singles out those ODD numbers. It occurs when three consecutive odd numbers make up a date– something that happens only six times a century. The last Odd Day was 7/9/11 and the next will be on 9/11/13.

## Holidays by the Calendar

[ February ] [ March ] [ September ] [ October ] [ November ]

# April

April 1 - April Fools Day- Check this out!

## September

### September, 2013 (only this year) - Odd Day

• It occurs when three consecutive odd numbers make up a date– something that happens only six times a century. The last Odd Day was 7/9/11 and the next will be on 9/11/13. (and 11/13/15)

## October

### October 23 - Mole Day

• This number is best known to science teachers, especially those teaching Chemistry. The mole, Avagadro’s number (6.02×10^23) that’s used as a basic unit of measure in chemistry. It’s observed on October 23rd from 6:02 am to 6:02 pm, and can include enjoying anything mole related from mole sauce to creating a mole to playing Whack-a-Mole. Seems like puns are celebrated on this day!
National Mole Day Website -

## November

### November 19

Mobius' Birthday - celebrate it with this puzzle- Mobius Double Cross - http://pballew.blogspot.com/2013/11/mobius-double-cross.html

### November 23 - Fibonacci Day

• Are you a math nerd? Nov. 23 is the celebration of Fibonacci’s sequence. This sequence, made famous by the Italian mathematician, creates a spiral and begins with the numbers 1, 1, 2, 3, so the holiday is celebrated on November 23rd of each year. Celebrate with Fibonacci problems, look at it's applications, and/or enjoy Italian Food.
• Lesson Plan for Fibonacci numbers and the golden section -
• The Mathematical Magic of the Fibonacci Numbers -

· Unit Origami by Tomoko Fuse, Japan Publications Trading Company, 1990. ISBN 0-87040-852-6
· Joyful Origami Boxes by Tomoko Fuse, Japan Publications Trading Company, 1995. ISBN 0-87040-974-3
· Origami Resource Centerhttp://www.origami-resource-center.com/