Mary Cooper

Retired Alabama Teacher

[Howie Hua @howie_hua]

Did you know completing the square literally means to complete the square? I didn't when I was in high school and that would've made it so much easier.

[Howie Hua @howie_hua]

Fun math fact: If you divide the first n positive odd numbers by the next n odd numbers, you will ALWAYS get 1/3. Here's why! (With a visual included!)

[Howie Hua @howie_hua]

Today, 6/28, is a mathematically perfect day!

[Howie Hua @howie_hua]

Mental math trick when dividing by 25:

[Howie Hua @howie_hua]

It's Mental Math Monday! What goes on in your head when you're mentally calculating 88+89?

[Howie Hua @howie_hua]

It's Mental Math Monday with guest Nicole from Minnesota. If 2/5 of a number is 70, how would you mentally calculate what the number is?

[Howie Hua @howie_hua]

What did the coordinate system do at the fruit stand?

Ordered pears.

[Lincoln Co. Schools @LCSchools1]

Mark your calendars for the 2025 Job Fair! #oneLC

[Howie Hua @howie_hua]

How to quickly find all prime numbers from 1 to 100

[Howie Hua @howie_hua]

Watch this video if you don't like math

[Howie Hua @howie_hua]

It's Mental Math Monday! How would you mentally calculate 8×88? Can you do it without using any 8s?

[Interesting STEM @InterestingSTEM]

2025 is a mathematical wonder.!!

[Lincoln Co. Schools @LCSchools1]

We hope you all had a wonderful Thanksgiving Break filled with joy and relaxation! As we return, let's embrace the next three weeks with enthusiasm and focus. Together, we can make this time productive and memorable as we prepare for the upcoming Christmas Break.

[Howie Hua @howie_hua]

It's Mental Math Monday! Math educators Dana and Kyle want to know how you would mentally calculate 427+385. Please share how you would do it in the comments.

[Mary Cooper @MCooperEducator]

@JessicaWKent @AMSTI4all @AMSTI_Athens @AlabamaAchieves Miss you guys!

[Mary Cooper @MCooperEducator]

@BethMooreLPM So good to hear an update! It’s great to see you still have your awesome sense of humor!

[Lincoln Co. Schools @LCSchools1]

We would like to thank the individuals and businesses who donated for door prizes at the 2024-2025 teacher inservice. Your support is greatly appreciated! #oneLC

[New York Yankees @Yankees]

Thank you to Orlando “El Duque” Hernández for throwing out today’s ceremonial 1st pitch!

A 3x World Champion with the Yankees, El Duque will be honored tomorrow night at the Yankees 44th Annual Homecoming Dinner with the “Pride of the Yankees Award.” 🙌

[TodayInSports @TodayInSportsCo]

26 years ago today, the cover of Sports Illustrated. #RepBX