Do you know what day of the week you were born on? If not, you could…

Ask your parent(s)/guardian(s) if they remember the day of the week.

You could “Google”: What day of the week was May 16, 1975 (that’s my birthday)
OR
You can do this ridiculously long way…which is more fun IMO!
Spark your math thinking!
1. Set up your math mini spark recording page: #90: A Ridiculous, Long Way to Find Out the Day of the Week You Were Born
2. Follow the steps. If you would like to see an example of the steps, scroll down to the bottom of this post.
Step 1: Take the last 2 digits of the year in which you were born.
Step 2: Divide that number by 4 and ignore any remainder.
Step 3: Add the day of the month to the answer from step 2
Step 4: Add the month’s key value to the answer from step 3.
January and October:Key Value = 1
February, March, and November: Key Value = 4
April and July: Key Value = 0
May: Key Value = 2
June: Key Value = 5
August: Key Value = 3
September and December: Key Value = 6
Step 5: Subtract 1 for January or February of a leap year.
Step 6:
Add 0 if the date is in the 1900s
Add 6 if the date is in the 2000s
Add 4 for the 1700s
Add 2 for the 1800s
Step 7: Add the last 2 digits of the year.
Step 8: Divide by 7 and take the remainder.
Remainder 1 is Sunday
Remainder 2 is Monday
Remainder 3 is Tuesday
Remainder 4 is Wednesday
Remainder 5 is Thursday
Remainder 6 is Friday
3. Now doublecheck your work by searching on Google!
4.Create a product that shows your work! Example:
5. Share your math mini spark recording page with your teacher/EY coordinator.