#30: What day of the week is it?

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I found this very complex mathematical formula that allows one to figure out the day of the week any date falls on.  Don’t let the formula intimidate you!  I did this with some 3rd graders today and with a few explanations, they were able to figure it out.  So can you!

Spark your math thinking!

  1. Set up your math mini spark recording page: #30: What day of the week is it?
  2. Watch this tutorial to learn the process.

3. Figure out the day of the week you were born on using your birthdate and year. Add your math steps to your recording page.

4. Figure out the day of the week for another date in history (Pearl Harbor, Declaration of Independence, etc.) and record your math on your recording page

5. Check this Math is fun page to see if you did the math correctly. Check your work.

6. Scroll down to the bottom of the post to read about the Zeller’s Algorithm in JavaScript code that is used to find out the day of the week. Write down some patterns that you notice in the code.

7. Share your math mini spark recording page with your teacher/EY coordinator.

Check out another method to find an exact day with this math mini spark #90.

 

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