Welcome to Day 9 of the Twelve Days of Mathematics for Christmas:
One of my grandsons’ favorite Christmas songs is the Twelve Days of Christmas. In honor of this song I am creating The Twelve Days of Mathematics for Christmas. There are activities for K-3. Intermediate – MS (grade 4 – grade 7), and Secondary (Grade 8 –Grade 12) and correlated to the number of the day. Check below for the links to the FREE resources for both TES US and TES UK.
The Twelve Days of Mathematics
Day 9: Nine Ladies Dancing
On the ninth day of Christmas my true love gave to me nine ladies dancing, eight maids a-milking, seven swans a-swimming, six geese a-laying, five golden rings, four calling birds, three French hens, two turtledoves and a partridge in a pear tree.
The number 9 is considered by many to be lucky and to be magical. Students of all ages can enjoy any of the vast selection of activities centered around the number 9. From initial investigations
of the 9s column on a 100s chart to multiplying and operating with 9s to a historical problem from a famous historical mathematical work there is something for everyone. Students who need practice building proficiency with basic arithmetic operations will benefit from these activities.
As an extension research assignment check out The Math Dude’s posts on the Magic of 
Number 9 (Part 1, Part 2, and Part 3). Several nice number puzzles/games that involve computing around 9 as well as Casting out Nines are included.
Part 1: http://www.quickanddirtytips.com/education/math/the-magic-of-number-9-part-1
Part 2: http://www.quickanddirtytips.com/education/math/what-is-casting-out-nines-part-2
Part 3: http://www.quickanddirtytips.com/education/math/what-is-%E2%80%9Ccasting-out-nines%E2%80%9D-part-3
Enjoy the ninth day of Mathematics and check back tomorrow for Day 10!
Links for TES US:
The 12 Days of Christmas K – 3 Day 9: https://www.tes.com/us/teacher-lessons/twelve-days-of-mathematics-for-christmas-day-9-k3-11180535
The 12 Days of Christmas Intermediate – MS Day 9: https://www.tes.com/us/teacher-lessons/twelve-days-of-mathematics-for-christmas-day-9-int-ms-11180536
The 12 Days of Christmas Secondary Day 9: https://www.tes.com/teaching-resource/twelve-days-of-mathematics-for-christmas-day-9-secondary-11180539
Links for TES UK:
The 12 Days of Christmas K – 3 Day 9: https://www.tes.com/teaching-resource/twelve-days-of-mathematics-for-christmas-day-9-k3-11180544
The 12 Days of Christmas Intermediate – MS Day 9: https://www.tes.com/teaching-resource/twelve-days-of-mathematics-for-christmas-day-9-int-ms-11180542
The 12 Days of Christmas Secondary Day 9: https://www.tes.com/teaching-resource/twelve-days-of-mathematics-for-christmas-day-9-secondary-11180539
